I have a friend who has a modded Xbox. She has about 80 games or so on hers as well. And she does the same renting and saving thing. The ring of light is always yellow. Is that how yours is, Pantsless?
Personally I prefer owning the actual game. It can get expensive, but I guess that's why I tend to wait and pick up games when they're in the $20 price range. :D Unless it's something I'm really excited about, like I was with Battlefront 2 and Tombraider Legend.