When I look for a centerpiece type fish, I wait for a certain fish that I really like or have it special ordered. If your centerpiece fish to be in every major aquarium shop in the world, than go for it. I like oddballs, if I wanted to look at a dwarf gouramis and neons, I can go to the LFS.
Man, that sounded like bigtime fish snob.. haha
Not really, I just like to have fish that aren't in most LFS.