I agree with IO-540. I would rather go touring in a 140kt+ 4 seat spam can than an RV-8. And I have flown both. More room for luggage and the interior is generally more comfortably appointed with lower noise levels.
In my opinion (which IO-540 and I are entitled to, as you are yours) the RV is more of a fast exciting sports plane with crisp handling rather than a solid IFR tourer.