If you have no need to use the aircraft in a commercial role, experimentals are hard to beat.
I have owned a variety of certified aircraft over the decades... a Champ, Citabria's, Scouts, 185s, a Viking, a C310... Most recently, I had a Grumman Tiger that I enjoyed a lot ('77 with orig. paint and shotgun avionics), then I moved to a high altitude airport and really needed more "hot and high" performance. Service ceiling on the 180hp Tiger was ~14,000, which is a pretty normal cruising altitude in many of the mountain passes I was using. The Vans RV9A I fly now has a service ceiling almost 10,000 ft. higher, with only 160hp, cruises at 155kts instead of 132kts, is 5 years old instead of 45, with 200 hrs on the engine instead of 1300, burns less fuel, climbs *way* better, new paint, newer electronics, lovely build quality, etc. For $15k more than I sold the Grumman for.
The RV only has 2 seats, but at my home base (well above 7000msl) the Grumman was essentially a 2 seat aircraft. I normally hire my maintenance done, so the maint. costs have been pretty comparable between the Grumman and RV, but I'm sure parts will be much less expensive on the Vans than the Grumman as time goes on. I'm instrument rated and intend to upgrade my RV's panel soon; that will be much less expensive than it would have been in the Grumman. Experimental avionics, with a new airframe and wiring to work with...
I also would love to build an RV10... but not confident in my persistence to see 4-yr construction project through.
Bottom line- I can highly recommend owning/flying E/AB aircraft. If you can find one that meets your mission requirements. It is important to find someone familiar with the E/AB you are looking at to judge build quality, etc. The process is arguably a bit more complicated than buying a Cessna or Piper but well worth it. Vans is pretty much the gold standard for kit quality and resale value, assuming they make an aircraft that works for you.