Dont own that many games, but it would help if steam stopped putting the same games on sale every year. Give people a bit more choice then having L4D for the last 5 years in a row. Thats my main gripe about these sales...
And yeah - Once you own most of the titles, theres really not a lot of choice left to make
yeah, I own a lot of games on Steam and more on Origin/GOG/Desura plus I have a PS4 and Google Play account lol but I have been using Steam since it replaced WON.