What is this "you can't gear up and buy animus books simultaneously"? 2.3-2.38 books cost myth. Best gear was sold 450 lockout to gear. If you mean gearing up as i90, then you had to spend it on either books or 90 gear (or farm coil1). And there were crafting mats and junk to buy with myth then too.

Previously myth shared between 90 gear, mats, books. 110 Sold 450 cap.
Now sold shared between 110 gear, mats, books. 130 Poetic 450 cap.

I have now idea what your trying to say here.