I was having a similar conversation with a friend of mine last night. We are both in our early 30's, and we were starting to sound like old geezers missing the good ol' days.
I miss the days when my friends and I had a blast at Street Fighter and Mortal Kombat because we had really fun and close matches. Several years later I go online and get my ass handed to me most of the time, because everyone seems to play in "pissed off mode".
I remember having really fun gun fights with all of my friends and family while playing first person shooters in split-screen or system link mode. Then I go online and get frustrated quickly, because everyone uses the cheapest tactics possible.
I used to think voice chatting in games was an awesome idea, up until I started to hear strangers talking crap, whining, and generally being annoying.
I used to like the idea of expansion packs for games, but now that has been replaced with "Season Passes", micro-transactions, and on-disc DLC.
I still remember the days of entering cheat codes to unlock cool secrets in games. You barely see things like that anymore, nowadays you have to pay to unlock anything.
I basically just blame the Internet for changing games around (for better or worse). Some love the way things are now, but to me, it's turned "friendly competition" into a professional and hostile sport. Some people might say I just "suck" at video games. It's probably that, but many people online tend to take their competitive gaming WAY too seriously. It's also annoying that most games are competitive in the first place.
My biggest gripe about games now is how "disposable" they feel. You spend $60 on a game with a $20 season pass, and the game feels practically worthless a few months later. We are in this ADHD generation where we have to play as many games as quickly as possible because game developers are churning out games faster than anyone has time to possibly play. I would jump for joy if the video game market crashed and took a time out so I can catch up on my existing catalog of games without feeling guilty about ignoring many more on the horizon. It has gotten to the point now that I am so overwhelmed, it doesn't feel like I am playing games anymore, it feels like I am working for them. My problem is most likely that I read about the industry way too much. I would probably be better living under a rock and focusing on my existing library instead of constantly hearing announcements of what's in the works. This has been my hobby for close to 30 years now, and it's hard to just walk away from it, but I probably should take a vacation from gaming myself.