I've purged several times but you'd never know it. I've donated, sold some on Ebay and I still have way too much. I don't have a lot of yardage because I'm a sucker for fat quarter bundles but still it's out of hand.
I haven't bought any fabric since around May and don't intend to (we'll see about that). I don't have anyone who will use it in my family so I need to purge more. Of course if I live to be around 500 I'll be all set.