Because if you were a wizard you would make sure you had one to cast it.  It also makes it one you need to work for.

Also, I do think it’s worth taking. It’s worth knowing what properties an item has because you know what it could can do. As well as you can who would want it. 

Not only that, if you can’t identify  Cursed Items anyway, it seems stupid not to take it. 

Quote from Zthulhu >>

This spell is dumb y would you have a 100GP pearl at first level

 

 you know higher level characters can cast first level spells, right?

Yes thats correct, you could put it in a necklace or something for example

Identify. It can be used for things beyond simply figuring out what a magic item is, such as figuring out magic traps, and what spells and wards are guarding things.

Given the 100gp material component, I don't feel like Identify provides enough benefit over short rest identification as-is, especially considering the most likely classes to have this, bard and wizard, have to "learn" the spell and can't swap it out with a long rest.  So, I generally just house rule that Identify *does* spot curses, while short rest identification and subsequent "blind attunement" do not, if only to give a party *some* chance to spot a curse preemptively if they have invested this much in members with the right class(es) *and* the right abilities.

Its an additional 10 mins so a 1 min spell would take 11 mins

Can you detect that a magic object affected by Arcanist’s Magic Aura to appear nonmagical is magical or not with Identify?

Wizards only have to learn the spell, they are not required to prep the spell to ritual cast it, so they can buy or find a scroll of ID, stick it in their spell book, and then cast it as a ritual whenever they have 11 minutes to spare without having to switch out any other spell. Maybe you meant sorcerer? 

Also the spell has some  really solid uses beyond “tell me what this magic sword does”. Revealing spells affecting a person or object can be a major boon to information gathering for example. 

Most of these comments seem to be along the lines of players not thinking this spell is valuable.  
I mainly DM.   I feel like the spell needs nerfing.  This and healing word are the most overpowered RAW imo 

Is this spell always cast as a Ritual?
Or can you spend your 1st lvl spell slots as well?

Seeing as it doesn't have additional effects on higher slots?

Quote from EddieRo >>

Is this spell always cast as a Ritual?
Or can you spend your 1st lvl spell slots as well?

Seeing as it doesn't have additional effects on higher slots?

 You can use slots of any level to cast it, and it will take 1 minute, compared to 11 as a ritual. It just doesn’t have any bonus at higher levels.

Because this spell fails to detect curses, a fact only shown in the DMG (p.138) and not in the spell's description, it is almost entirely pointless for identifying magic items except in extremely niche situations RAW.

Question: If this spell was used on a monster, say, a Mimic that looks like a sword, what would the spell tell you? It only says that it tells you "what spells, if any, are currently affecting it." But if there are no spells affecting the Mimic, does that mean the spell just fails & tells you nothing? 

Quote from PostULater >>

Question: If this spell was used on a monster, say, a Mimic that looks like a sword, what would the spell tell you? It only says that it tells you "what spells, if any, are currently affecting it." But if there are no spells affecting the Mimic, does that mean the spell just fails & tells you nothing? 

It would tell you that the thing that's stuck to your hand and has been trying to eat you for the past 1-11 minutes is not a magic weapon and has no spells affecting it, unless your party has cast spells on it trying to save you while you continue to cast the spell for some reason. Anything beyond that is up to the GM. Good job keeping up concentration, though.

This is a guess, but since Arcanist’s Magic Aura tricks “divination spells” and Identify is a spell from the Divination school, it would reveal the information the Magic Aura shows.

Your DM might rule that Identify sees through this, but I personally think the above is more likely.

Magic Aura can trick the identify spell, and basically give completely false information, only partial information or nothing at all IMO. 

Does this give you information about non magical items?  It only mentions info about magic, but I feel like it should give you more than just that. 

Will an identify spell tell you any command words needed to activate an item?

Would this identify if the item is created via Infusion?

my god why does it not say here that this spell is just worthless

you can identify something by focusing on it during a short rest and furthermore this spell doesn't identify curses