Hi Grey Legion
It's too bad you got an employee who only knew part of the story...........
The next time you go to that store, try talking to someone else. You never know, but you might be pleasantly surprised. Then again, maybe not.
For the best answers to your fishy questions, usually the biggest variety of choices, and probably the healthiest fish, you cannot beat the independent lfs. It's there you will find long term employees who are serious fishkeepers themselves and understand not only the basics of the hobby, but a lot more.
OK, the fish might cost a little more, or you might have to travel out of your way a bit, but IMHO, it's more than worth it.