Haha, well as long as the games spent are worth it or you play them sooner or later is fine!
I mostly buy games for 2 reasons:
1) because I want to play them (obviously)
2) to do "research". Since I make games too, sometimes I hear stuff like "the combat on game XYZ is well done" and so on. So, sometimes I just watch youtube videos, other times I buy the game to see for myself.
In case of 2, many times I even play for 3-4h the game and then no more
but it's still worth it for me personally since I can get ideas for my own games/stories