This is the mentality that I wish more people would convey. 3D certainly is 'nifty', but it's not at all like the huge quality jump that HDTV delivered, or the revolution from CRTs to flat panels. This is just like a new Widget for your TV. It may be nifty to some, it may be stupid to others, but eventually it is likely to be on almost all TVs sold.
One of the best parts of the BD specification as I understand it, is that 3D Blu-ray Discs are encoded in such a way that you get the full (and perfect) 2D film as well as the 3D extension to that film. The disc will play in a 2D player fine and then can be used in 3D players as well. This means that if someone is interested, they can just buy a 3D Blu-ray title and enjoy it in their 2D player until they decide to upgrade or something breaks.
There seem to be a lot of people who get enough information to be dangerous, but not enough people who just take the attitude - "I'm not buying yet, I don't have to, I don't want to... I'll wait and see what happens."
I'm in that category, and if I buy anything it is likely to be a 3D capable projector to pair with my PS3. But, I will buy it to replace my current projector, not to just get a simple upgrade. It won't be a price hit really unless glasses start going way UP in price. Not likely!
Really, people can get the Samsung 46" TV, with 2 pairs of glasses and a 3D Blu-ray player for under $2,000 pretty easily. This is a good looking flat panel for day-to-day viewing and a 'bonus' of 3D. Not exactly cheap, but a long way from the prices that 46" flat panels were just 10 years ago.