What I miss the most is old, musty-smelling used bookstores, where finding treasures was a real possibility. There are still used bookstores, of course, but they too have fallen prey to the internet, and most of the really interesting things, be they books or decks, are either exhorbitantly priced or non-existent.
I was in a huge bookstore here in Jerusalem recently, and their New Age shelves depressed me, as they were exactly that. Used copies of the Monk and his Ferrarri, Who moved my cheese and the like, very basic beginner Tarot books, and really, more or less the same things you see in new chain-bookstores, only used, and not that cheap, either. The owner didn't even know who Aleister Crowley was. Another store I checked did know who he was, but didn't have anything.
On another subject but related, why are some decks priced differently, as in, the Thoth is more expensive than the RWS although it is the same publisher, same cardstock, same everything.