@piperasmus: I have never, ever heard of or seen a Baki Pipe with an undesirable crack in the bowl.
You might want to keep in mind that IMP, Altinay, AND, Altinok, Storient and several others mentioned here are the importers, not the maker. Although lankfordjl originally asked about a quality online store, I'd suggest looking at the maker/carver of the pipe, then find an importer that has what I'm looking for.... An importer calling their wares "Signature Pipes" means nothing to me. (Just my opinion).