Time for a new phone???

  So I am finally eligible for a new phone with Verizon and able to upgrade from my Motorola Droid. I'm at a loss for what to do though. I know that I want a 4G LTE phone, but cant decide which phone to get, or if I should wait for the dual core phones to start coming out. Of the phones that are out now, its a toss up to me between the HTC Thunderbolt, and the Samsung Droid Charge. Both of these phones are very similar, with a 4.3 inch screen, 4G LTE, and capable of providing its own WiFi hot-spot. These are the main features that I'm looking for, as I want the ultra fast 4G network, and the ability to connect my Motorola Xoom to it for internet on the go. The Samsung is a little more expensive, but I think it also has a nicer looking screen. What do you think? Should I get a new phone now, or wait for the dual core phones to come out so I'm not wanting another new phone in a few months?