Where did you pay $700 for the Tbolt? I got mine from Verizon on launch day. It was $599 + tax so it ended up being $645. It's now retailing on Verizon's site for $570.
With the Droid Charge having a $700 retail price, that comes to $756 using the same tax percentage.
I do miss the amoled screen from my Incredible, but I wouldn't trade that to get the Charge. They're just now getting Froyo on the Fascinate, almost 8 months after the phone released. When it came out Samsung said they'd have Froyo on all there Galaxy S phones (overseas & in the USA) by November. My Incredible got it 3-4 months after release (not bad considering they released Froyo to OEMs around the same time as the Inc. released.
Another thing to look at is alot of reviewers are reporting battery life about the same or worse than the Tbolt, and it's Quadrant score hasn't been able to hit 1100. My Incredible can get mid 1300s with a first gen Snapdragon. Some are saying that Quadrant can't take advantage of the Charge's true potential. But, if that's true, how is the Galaxy S2 getting around 3500 using the same app? To me, the Charge amounts to a pretty paper weight.
As far as the issues with the Thunderbolt, we didn't find out about those until after it released. Do you really think that the Charge will release bug free? Has any smartphone ever released bug free? My Tbolt is a known quantity. I have had very few issues with it. Trading to the Charge only means opening myself up to a whole new set of issues. And Samsung isn't known for being great with updates, be it bug fixes or OS.
Just my $.02.