My stash built up over the years is about 200 kits. I don't think I've finished one since I found Airwarrior however back in 1996. Kinda sad really 
LOL Dan! Not
quite as bad for me, I only have a few dozen kits stacked on top of my computer armoire and desk in my office, but I'm a bit like you in the actual time spent... since discovering AH in March '09 I have completed exactly one kit, 1:48 scale P-38 "Arkansas Traveler".....
On top of my desk right now in front of me are 1:48 Academy P-47D, Hasegawa P-38J "Virginia Marie", Tamiya A6M5c, Hobby Craft La-7, Revell P-40E, F4U-4, P-51D, and Spitfire Mk II, ICM Yak-7DI/Yak-9(early)...... and a bunch more in the closet..... someday I'll have time.....
Not quite as cool as doing it yourself, but I picked up a few 1:32 and 1:18 WWII birds off e-bay, 21st Century Toys "Soldier of Fortune" stuff...




My son's room... I'da killed for that room when I was his age!