I've got my A&P as well. My dad owns a Cessna Cardinal (Fix Gear). Stats:
180HP
120Kt Cruise TAS
4 Seats
48 Gals
8 GPH
RV7:
180HP
165Kt Cruise
2 Seats
42+ Gal (I'm planning on building bigger tanks)
8GPH
Now since I normally fly the Cardinal with the back seats empty, the two extra seats don't do much for me. On the whole, I don't really have to make this decision since my Dad isn't planning on selling the Cardinal, and I can still fly it if I need four seats.
Maintenance for US runs around 5-6K/year, but I do almost all the work, and get a shop discount
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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All in all, the fact is, I could get an airplane that performs almost as nice as an RV-7 in the certified world for less money (Grumman AA1C with a TD conversion and 160HP) but still choose the RV. That is even with my having my A&P (IA this summer) and working in the industry. Why? Because I think I could build a better airplane! Bonanzas are beautiful, and for some personallities, are the perfect airplane. But the fact that you have already built an RV means that they are not for you.
If you want to have a "nicer" airplane than an RV, you might want to consider another project, Maybe make the first TD and retractable RV-10, or perhaps a Glasair II. Hell, design you own airplane if you want. But the inability to tinker on the certified airplane will wear on you fast. There are so many things that can be improved on them, that it's hard to resist just doing it. I'd love to redesign the cowl and baffling on my dads airplane, but the FAA would have a COW!