Haven't you heard? There aren't any new games. Keep up with the whining of the week, "I have a big pile of shame" is so 2013.
Anyway, hey, as others are saying, don't worry. Games are longer and longer these days, many are built for replayability and they're also cheaper than ever. It's getting to the point where I don't feel any more of a moral imperative to finish a game I start than to keep watching a TV show. If it's not what I feel like doing in the moment, I can stop at any time. Sometimes I stop playing something not because I hate it but because I'm busy and something newer comes along, and I also don't mind doing that. If I really want to keep going with a game I'll get to it.
I almost feel like more devs should acknowledge this is just how we play now and start designing for it. Kill all padding and build in different breaking points for people to leave at a satisfying point if they want to. Say what you will about Destiny's grindy endgame, I got to the end of the story on that, never touched it again and felt I had spent 20 decent hours and didn't need to keep going.