Long gone are the days of shareware, as file sizes for small chunks have increased dramatically, but I've found an interest in some of the new Steam demos, particularly the ones from Bethesda published titles. The Dishonored 2 demo had an appealing level right at the start, DOOM had enough running and gunning to satiate my fix, and Prey... I'm not really getting into that one, but I do admit it's pretty generous.
I own full versions of all of these, yet if I ever get the hunger to play one of them, I find myself logging into my secondary (demo-specific) steam account and just downloading the freebie, to save on hard drive space.
Anyone else have any games they never felt the need to play the full version of? They don't have to be new games - just think about any you've played in general. I'm interested in hearing everyone's stories.