My personal view is that the name is not that important, buy what you like and what you are intrerested in. It is far more important to know the latin name of it as you can use that to find out how to take care of it. Just my 2c
I think it's just a way for lfs to charge insane amounts of money for a normal BTA. There are many threads on American forums where a user posts a picture of the "sunburst" they just bought, and other users always reply "no, that's not a true sunburst like mine!".