What are you still into that's no longer popular anymore?
Just video games in general. I have about a handful of friends who still play video games, but even they're really casual about it. Last week, I was chit-chatting with one of them and mentioned how excited I was for Friday, since Pokémon Super Mystery Dungeon was coming out and I had it on pre-order. Their response was a disinterested, "Oh? I don't keep up with that these days; I just get the digital copies whenever."
And I'm just sitting there like, "When did everyone I know become an apathetic robot?" So, I guess I'm the only one still into excitement, too. :/
Paper books. My wife has a Kindle, which I use when I'm reading something I only have as an e-book, but given the choice I'll take a paperback every time.
Paper books here as well.
I would say metal music and long hair, but those seem to be making a comeback again. Seen several long-haired guys out and about these days.