I am aware of those options. I avoid them for 2 reasons.
1) I'm hesitant to go to a service where I'm just leasing a game. Valve has proven to be a good steward (im aware of GOG being better in that you actually own the game). I've already bought $X000 of games on there over the years and my experience has always been good. I don't want to try another service where I have to rebuy games.
2) I live in NYC with a max 10ms ping to a server in a game. When I go to my parent's house, their network is stretched to the limit. The ping is much higher, the ISP provided bandwidth lower.