>>283617136
For a manga? $40 for one of the Yugioh manga books I was missing.
For an art book? I think ~$70 or $90 for the 25th Anniv. Big O book (it was overpriced, but worth it).
For any book (not /a/ related)? $200 for one of my college textbooks (if that counts), or $80 on an art book I recently bought.
It's funny, because I've been buying a lot of art books lately instead of /a/ merch (sorry Amico), so that's been on my mind. There's a set of books I want for ~$700. That would be the most I've ever spent on one single item for entertainment purposes. However, that sadly seems to be what it goes for because it's a compilation of a fairly well known artist's entire career in one box set. I need to save up next year for it.