What does your games folder look like?
I always keep a folder on my homescreen full of the games I currently have on my device (mainly to remember that I actually have some of them since all I usually play is the last 2-3 games I've downloaded).
I have bought tens (hundreds?) of games from the Play Store but most of them are not installed on my device (I stopped liking them after a while, got bored with them or I completed them). These are the ones that have persisted because of their awesomeness or newness.
So, what does YOUR folder look like? I'll start by posting my own in the first comment!