Realistically, I have a lot of free time which could theoretically be spent gaming. The spanner in the works is that often I'm exhausted and/or incapable of dedicating the necessary brainpower to playing games that I'd need. I think that's why, over the last few months, I've been investing a lot more time in "casual" or indie games rather than the more long-winded or "serious" RPGs I'm used to.
That being said, if I'm playing a game with friends, it seems to increase my willingness to play for extended periods (providing I don't have any commitments that would require me to stop playing). Games like Smite or Minecraft are prime examples of that. If I played them on my own, I'd probably manage 1-2 hours before losing interest and/or patience. If I'm with people, the time I spend playing them pretty much doubles.
I also have the added penalty of having an insane backlog of games I need to play. It's pretty overwhelming, and often discourages me from touching any of the games I haven't already played and learned I like.