In my opinion, developers are making some great experiences, but haven't put a lot of thought into long term gameplay using the touch controllers. Standing experiences are great, but after a certain amount of time you just want to sit down. The amount of time varies, but it's certainly not in the same ballpark as some of the marathon sessions I've had on my PC monitor.
I've been able to play a lot of standing games just fine while sitting in a chair. Some games, like The Unspoken, all the action takes place in front of you, so there is no need to turn around. In other games, like Robo Recall and Arizona Sunshine, you can teleport to change direction and look behind you. Once I mastered that mechanic, I was able to play the games moving only my head and arms. Turning my body became a pointless exercise, and I was able to play the game for much longer periods.
Is it just me, or has anybody else been having a fun time in the rift and had to put it down because of fatigue, wishing you could still play, and then went back to playing 2D games on a monitor or console?