I think I am going to help JIP here with his distinction.
The guy at BB will pretend to help you, and then put in your hand whatever you are looking at and what they have in stock. His only goal is to put your money in his pocket.
The guy at Ritz actually has a goal... to offer you the best solution based on your needs. Now, if your questions are vague, you are not sure what you want or haven't done your homework, the guy at the Ritz (or any reputable place) is not going to be able to help you get the best bang for the buck.
I think I mentioned before that there is a certain amount of homework to do before you go to the store... you are now seeing the effects of what happens when thats not done.
In short, instead of you leading the salesperson to what you want for the best solution for your needs... you are being led by the sales staff to where they want you to be.
Today is Friday... good luck with your purchases.