There was a US-based company that was starting to make diesel-powered bikes for the US military - they appeared to be based on the KAwasaki KLR 650, but with a different engine of course. They were struggling to stay afloat but perhaps with the "green" incentives they may find renewed interest in their product if they make a version for
civilian purchase - and bring the cost down. LAst report I saw had those army bikes at over $20K a piece..... kinda like the gold plated toilet seat cover deal..
There is a company that makes an electric motorcycle in the US as well - the frame is actually all carbon fiber, I think. It is very light and would be good for scooting around town on errands, but I wouldn't want to try to take it onto a major highway as it would get blown right off the road by the first semi going past. An interesting
concept, though, and these cost around $15K are present:
http://www.enertiabike.com/content/view/8/8/So, you could either get one of these or a new R1200RT !