I was in the market for one of these, but I was told not to buy one for atleast 18 Months.
They said the price will drop dramatically and they said the technology will evolve leaps and bounds. But the biggest reason they said not to buy one was the industry hasnt yet decided which 3d format to use.. apparently there is more than one. They said it could be the old VHS / Betamax / Blu / HD DVD type thing again.
So for me, im going to hold off for a bit.