why is the new discount of 25% does not apply for bundles?

The discount is for books only. Bundles are excluded from that, some have their own discount

Any idea why a partial bundle would cost more than the books left?  I'm seeing the Player's bundle for $65.01 for two books (TCoE and SCAG), when the two books would be $60 normally or $45 during the current sale.

Quote from dubyadubya >>

Any idea why a partial bundle would cost more than the books left?  I'm seeing the Player's bundle for $65.01 for two books (TCoE and SCAG), when the two books would be $60 normally or $45 during the current sale.

 The credit you earn towards a bundle is equal to the amount you've spent, not the value of the books.

Here's an example that explains how it all works

Say you've got a bundle with a 10% discount that contains 5 books
That bundle will cost $134.95
If you buy two of those books at 25% off, the price of the bundle will be reduced by $29.99 * 2 * 0.75, making it $91.45
If you were to buy all four books individually, the bundle would still cost you $44.98, even though you're not buying any books
That $44.98 represents the difference between what you've spent and the price of the bundle
What it gets you however is a 10% discount for any future book added to that bundle

Thanks for the thorough explanation.  

Thank you :)