I speak purely and completely subjectively. No effort whatsoever at balance or perspective here.
I started to lose interest when Quake 3 came out. It had no local gameplay to speak of; if you wanted to play against anything but impossibly-quick local bots, then you needed to go online. But I was nearing 30YO by then, only a part-time hobbyist gamer, and online play was futile: I was and am so much weaker than any online gamer, I can't compete.
Spawn... splutch. Respawn, turn, move forward -- splutch. Respawn, start to turn, splutch.
Repeat for 5min, quit game.
Try a day later, repeat experience, uninstall game.
I have a PS2, and I did buy a few games for it. _The Driver_ was very impressive. It's just GTA, but down real streets I know well. DDR is fun.
But there is so much that is just more of the same, with a sky-high skill level as the base entry requirement. It's rather depressing. I used to enjoy this.
When the entire field has driven me away, no, I am not tempted to explore the niches and the edge cases.
It is a bit like being forced to do sport at school. As an severely shortsighted, overweight, very asthmatic child in an era before effective asthma drugs, sports were an exercise in ritual public humiliation for me. As a direct result, I don't just not like sport, I detest it with a burning passion. I don't even like to walk past a bar where there is a football match on: the chanting, cheering and jeering repels me.
In my 30s, effective asthma drugs came along, and I discovered that running and cycling can be fun... but never competitively, never with or against anyone else. I have been burned too deeply and the scars still hurt.
I used to like quick, easy, shoot-em-up games I could learn in 2min and just have fun blasting away. I don't want to spend weeks exploring, I don't want to build or model or construct or toil. I don't want vast immersive landscapes; I want a quick 1/2 hr diversion.
But the games industry doesn't seem to want the casual lightweights any more. Fine; then I don't want what it offers.