Not so much a bad experience (although the crappy fuel economy and constant engine oil top ups did annoy me a bit :D), more rather a case of 'been there, done that'.
I was an early adopter and picked up my Rx8 back in 2k3 when they launched. I kept it for a bit over 3 yrs... they haven't done any significant upgrades (besides the improved styling) since then to make me want to go back and get another one.
Hahaha.... nice, but not my cup of tea... not a fan of V8s unless they rev beyond 6k and are fitted inside something European. :p