Is there any point in preordering Van Richten’s Guide to Ravenloft? I was looking to see if there were any preorder exclusive perks like Tasha’s with the dice and border colors etc? The only upside is the discount but those come around so often I could just wait to hear about and then choose to purchase when it’s a better deal. 

Preordering digital content is usually a pointless action.

Just read go read VRGTR's Marketplace page. The second paragraph literally tells you what you get as a pre-order bonus: character sheet cosmetics and digital dice.

Looks like the usual perks. I pre-ordered since it is on sale *shrug*

Quote from Lyxen >>

Having pre-ordered it at start (mostly to support the hobby, to be honest), I must say that I find it extremely annoying that it's now on sale for pre-order. Unless DDB does something about this, this will be my last pre-order.

 I'd say reach out to support about it directly, (i usually wait until the last week before a book i'm interested comes out unless i see a sale)

Quote from Lyxen >>

Having pre-ordered it at start (mostly to support the hobby, to be honest), I must say that I find it extremely annoying that it's now on sale for pre-order. Unless DDB does something about this, this will be my last pre-order.

 They did the same thing with a few of the other recent books, to the point where I'm now intentionally waiting to place my preorder until the inevitable sale comes up or until it's almost release date.

There is really no point to pre-ordering electronic media, because the copies of it never run out. The main reason to pre-order physical media is to make sure you get a copy in case it sells out before you would otherwise get to the store or order it after launch. Pre-orders also let the company know how many (at minimum) to manufacture. 

But for something electronic, unless you want one of the (also electronic) perks like pretty dice to roll in the browser, there is literally no point to a pre-order. As someone said, discounts happen so frequently that you can find a sale price on it eventually even without pre-ordering, sometimes better than the pre-order price.

I pre-order as I like the digital perks but I only do it a few days before release or when a sale comes up.

You can often get the perks later as well it seems when they promote a particular book. 

I try not to get annoyed if I buy something that later goes on sale some you win some you loose, but you can avoid pre order sales frustration by waiting and not jumping straight in on pre order announcement. 

Obviously it'd be great if DDB could guarantee to match the lowest price on preorder items that may go on sale. Issuing refunds on release and collecting payment on the day of release rather than the day of ordering both have some fairly significant downsides though. That's not a great excuse, but it is a consideration. 

I definitely never preorder something that takes my money before the product is sent to me.  Amazon has for many years guaranteed that that if you preorder something and the price ever drops below what you selected between the time you preorder and the time it ships, you get it for the lowest price.  I don't see why DDB can't do something similar.

I pay full MSRP cost for the pre-order incentives hardcovers, because casual collector, and support for local game stores.  I digitally pre-ordered RotF because it was on sale that timed well with my game budget and I had the opposite approach to published adventures than I do now (that'd be a long digression but unless DDB develops further integration of its encounter builder/combat tracker suite including adventure encounters ready to go in those tools, I just prefer working out of the actual book and sharing content generated by my phones camera on the fly).  As a DM a lot of the incentives don't mean much to me, and my players haven't made a big deal about themes on their sheets.

With Van Richten's I actually see myself home brewing the lineages from the book into my private homebrew since I don't see much else of it at this point providing anything I'll "need" on DDB.  Basically the lineages and curiosity about how its guidance on Domains of Dread may play into something I'm coincidentally developing in my own game world are my practical reasons for buying besides the collector thing.  If there's a bunch more in it that motivates me to obtain their professional rendering of the book in their toolset, that's what Thanksgiving or the summer are for.

I'm not going to complain about a couple of dollars here or there - but that is underhanded to put a preorder on sale part-way through. It should be on sale for the entirety of the preorder or not at all. Otherwise you're punishing people who preordered early.

I always preorder the books digitally because I know I'm going to buy them anyway - and I like the little extra character sheet options (the dice I couldn't care less about). I also don't buy physical books because I would have nowhere to put them - and I prefer digital anyway.