I think you're doing better than most!
I've been trying to trim my camera arsenal for years, and have arrived at:
1. Hasselblad 500 system with two lenses
2. Pentax KX 35mm system with too many lenses (only need the 35, 55, and 100 really)
3. Minox 35GT
5. Pinhole 6x6
6. 5x7 Century that I never use, but it's really nice to look at!
I use them all extensively, so I'm happy. Don't need anything else. But I am mighty tempted to invest in a Leica system in the future, even though I really don't need one.