Unfortunately, due to changes at work, the best I could hope for in 2010 would be Gold with some expensive leisure stays (I'll be Silver after March 2010 due to travel being interrupted by family emergencies this year). I'd already decided that it was not worth it.
I have about 600,000 points to cash in, which I will do - probably slightly quicker than I would have done.
I'll still use some Hiltons I like (Berlin, Cologne, Munich City, Vienna) but I'll be looking for alternative accomodations on other places. Sadly, with my travel patterns, no other scheme would suit as well unless Accor actually came up with something decent.