I would say that you have too much gear when you have to contemplate buying a bigger house...
It's not a bad idea (even if your 100W amp is a solid state) to have a backup just in case... You never know when Murphy's Law will come into play. Of course, in a pinch, you can run the RP80 direct to a board and get some nice tones that way.
Having a practice amp at the house is a great idea, too. Keeps you from having to lug the "gig amp" around!
Guitars:
Fender 2006 MIM Fender Stratocaster HSS in 3TS
Ibanez RG 570 with a bridge Invader
ESP M II Deluxe with a Tune-o-Matic bridge
Eleanor, the magical, mystical Road Worn wonder Tele
Blackstar HT Club 40