The save count is directly related to your system clock. If you are on, say, save #24, and you set your clock back a day, and save again, it will make another save #24, and will keep doing so untill the time has passed the point when the first #24 was created.
i'm lvl 32 (i know i know, i haven't gotten much time to play) and i am close to almost 500 saves, with around 60 or so hours of gameplay
Damn. I only had 100 saves (Literally all 100, then i deleted half) in over 80 hours.