Ano yung usually average price range for Manga sa MIBF

Helloo, planning to go to the Manila International Book Fair for first time and i was wondering kung ano yung mga usual price ranges for manga since mahilig ako mag bansa/collect ng manga.

Ewan ko if this helps answer my question but just in case if you're wondering what im going to buy, i might buy neither a jjk or chainsaw man manga volume/s