Honestly, right now, I just don't think anybody is saving enough money to go with a GT25 instead of a VT25. If you go to the plasma forum, and read a specific thread regarding these two, you understand that there are actually a few more differences than just the lack of a pair of glasses, etc.
The big advantage with the GT25 line, is the 2D to 3D conversion, if that's something that you're into, and EVENTUALLY, a pretty big gap in pricing once the street pricing for the GT25's are known. Right now, looking at the MSRP of the GT25's, compared to the MSRP of the VT25's isn't really apples to apples, because nobody is selling the VT25 for full MSRP anymore, while initially the prices of the GT25 will be MUCH closer to MSRP in the beginning. After stores have had the GT25 in stock for awhile, I think you'll then see the street price come down, and there will be a much bigger difference between the two.
Remember, those glasses cost $150, so it's nothing to sneeze about. Also, I'm not sure if that promotion is still going on or not, but you also get Ice Age and Coraline 3D Blu Rays, and if you put those up on Ebay, you can easily clear $75 each for both of them, meaning another $150.
Considering this, the first $300 you save in the price difference is basically totally negated if you think about the fact that you don't get that free pair of glasses nor the two free 3D Blu Ray's that go for a crazy markup on Ebay.