consoles had way more variety in the 90s
Companies wanted to make their own Mario, their own Final Fantasy, their own Street Fighter, their own Final Fight, their own R-Type, their own Mario Kart, etc. But thats still a lot of different types of games and there was still stuff like Faceball, Uniracers, Nights, ZAMN, and so on. Right now everyone wants their own Call of Duty, GTA or AC, but they all want it in one game. Wow that may sound awesome, it gets very tiresome.
And I guess you're forgetting PCs period of Quake Killers, RTS and uh... I guess MMO, but then RTS vanished and it was two genres. There were other games of course, but they weren't a driving force. People weren't looking at an Adventure game at the time and saying "let's be that!" There were indie games but they were way out of the average person's ability to know about or purchase.
Do digital download services have the variety now? Yes, but their presence has lessened on consoles and grown more on the PC side.
Many of those big budget games just don't interest me. They're missing something, an identity or a reason for being. I'm not sure. I just see someone play a game, I think it was Prototype, and they could do a lot of things and it was a bit of this and that, but it looked extremely boring to play. There wasn't a smile on the player's face or even a reaction. It was just the sort of game that makes you stonefaced.