I tried to find a dealer to audition the 790s when I upgraded recently, I was replacing Mission 730 Pro's (enciente i think they're called, [pregnant in french???]) which I loved so I thought Mission deserved a fair shake.
Long story short, I couldn't find a dealer within striking distance (probably not so hard to find in the UK) so I had to give Mission a pass. As far as I'm concerned if the company can't be bothered to give me a dealer I won't give them my money.
Oddly I couldn't find a coincident dealer either, and they make them about an hour from my house!