Would i buy the new Thunderbird, (if i could afford it) yes, absolutely, but not because it is bigger or its faster or whatever. I would buy it along with many many many other bikes simply because i do not believe there is such a thing as two many bikes. For the most part, motorcycles are a thing of beauti and if i had the funds i would have a collection of the things.
Now, would i trade the America for the Thunderbird....not on your life. My TBA is simply to beautiful to ever let go off.