I test rode the BMW ST800, and it's a very nice bike. I just could not justify spending that much on a motorcycle AND the fuel tank is only 4.1 gallons. Plus, the fuel tank resides under the seat and there have been European reports of leaks caused by dents if the back wheel bottoms hard.
I do have to say, it was a very nice riding motorcycle. At about $9,000 on the road, I'd have one. No thanks at $12,000.
Hope this helps!