Every time I have been to Avol's, I feel like I am in a time-warp. Not because it's like so "old-style" , but because their stock never changes. I go in and it's like "Eh, nothing for me, thanks!". Then, I'd go back a few months later, and have this weird sense of deja vu, because NOTHING CHANGES.
Back when the owner ALSO owned the sci-fi bookstore on State st, the stock there never changed either. I assume if I still wanted to go pick up some of those 90's dungeon master guides, they would still be mouldering away on the shelves of Avol's.