I feel the same way some days Lusche, and also same as BaldEagle. I have more free time now than any other time in my life, yet I spend far less time gaming than I used to. When AH first came out I can remember 12 hour marathon sessions being more common than not, and I played the early Counterstrike and Rainbow 6 even more than that. Quake 2 prior to that, I paid for 3 different net connections back when dsl/cable was "@home" and very new, just so I could pick the one with the best ping when I needed it - if I could have gotten a t1 in my area, I would have.
Now...the hardware I have is 10x better than back then, and I have so many games in my Steam directory I don't have room for them all on 4tb worth of space - although I've never actually put that to the test. SO many games it feels overwhelming now, and I end up just not playing...any. Netflix and other such services have been my problem I think. I disconnected them, hulu, and even AH for the first time in a long time, in order to force myself to get back into playing games in general. I know, it sounds odd, killing the sub for Ah to get back to playing Ah, but other than messing around offline in beta, and the last scenario, I think I've played under a dozen hours this year, and as I said, I used to clock that in a single days, while working 15 days on 15 off, then 3 months on 3 off later on. My days off were 100% spent gaming while the wife was at work, and 1/2 the time when she wasn't (rawr). I hope to have re-ignited the desire to play by the time AH3 is out.
I think the reward center of the brain sort of becomes less...less, as we age. Mine has. I used to play to get the satisfaction of winning, succeeding, whatever it was, now, that just doesn't seem important. It's a shame too, because games now are incredible. Hopefully VR will bring some of that reward center back. Otherwise I keep upgrading and buying new stuff for Mrs and her nephews/niece to use, and for her to play WoW, which can be done on a rasp pii almost, not a 5$k gaming setup.