For me, it all depends. I am lucky enough to have a bit of "spare" space......
If the fish is expensive, I certainly do Q. With that said, I do have a great amount of trust in the LFS I have around here.
If for some strange reason I may possessed to by from Petsmart, or somewhere similar to that, they get Q for sure. And experience has taught me that if you have to point out the type of fish and its price to your customer service rep, plan on having something wrong with it.