I can't honestly say i'm a model hoarder. Because i hoard all kinds of other stuff too.
I only have 50 unbuilt in box kits and 16 kits bagged in ziplock from yardsales and 2nd hand stores.
I collect lots of other trinkets along with electronics and R/C's. My problem is i love to tinker with just about anything, especially if it's broken. I'll take an item apart just to see how it works, save maybe a few interesting items from it (I've made some cool wall art) then throw it away and file the knowledge.
Every year i go through my hobby room, garage, shed and clean out the stuff i know i'll never work on or is beyond repair. It's hard, but i told myself i have to do it. If i didn't, i think i could become as bad as the people on T.V.