Machine Man 1992 said:
At the risk of sounding elitist/pretentious, it sounds like the answer to most of your issues is to get a gaming PC. It opens the doors to an extremely wide variety of titles at virtually all price ranges. The humble/indie royale bundles have given me more games for a ridiculously low sum than I've ever managed to play through. Not to mention Steam sales. It kinda helps that "$60 for a 7 hour experience" burn.
If that isn't an option, think about
why you play games in the first place. The experiences that hooked you and made you think "this is something I want to do for the rest of my life". Focus on what devs are providing analogs to those experiences.
Maybe avoid forums for awhile. Spending too much time on forums can spin you in circles with the drama and politics surrounding "gamer culture", and prevent you from enjoying games for their own sake. It also bombards you with opposing opinions that can potentially cloud the ones you hold personally.
You may also consider the handheld scene. A 3DS purchase gives you the few great 3DS games that exist and are coming, including the gigantic and incredible DS library. I say this because it allows you to enjoy those games without crazy DRM schemes, DLC and microtransactions out the ass, half-baked games that require tons of patches, and the other bullshit surrounding modern console gaming at the moment.
It could also be "gaming burnout". Maybe you need to take a little sabbatical and find another hobby, even if it's on the side that also enriches your life. It can make the return to gaming feel new and fresh again, and give you a fresh perspective on what the medium is all about. I'm sure that if I didn't play instruments and make music, gaming would be such a dominant part of my life that I would lack the proper perspective to enjoy it for its own sake.
Also consider taking the plunge into genres you think you don't like or ones you've never tried. I thought I hated puzzle games for a long time until I played Portal, Thomas Was Alone, Braid, and the like.
All that said, I'm a 25 year old married man who is enjoying video games more than I ever have in my life (well, at least until an RPG comes out that's better than Chrono Trigger). I don't buy the whole "I'm too old to enjoy video games" line. I know that this is my medium of choice practically forever. I enjoy it more than movies and books, and games have cutscenes and reading anyway.
Hopefully I helped you out a bit.