Many people are locked in to the idea that a game is dead if new stuff isn't coming out for it, and only WotC material is valid. That's true even on this board full of Greying GenXers. Whether is is a reasonable position is irrelevant, because it's about how people feel.How so? Not only can you make endless campaigns of your own (a long and storied tradition particularly w/ dnd), but there are massive volumes of 5e content out there, not just from wotc, but also from 3rd party and individual publishers. Again, it's not like a videogame where you play the official content and then you're done.