There are 2 kinds of people that you can find working in any computer shop.

1:They are the people that have the knowledge in selling computers and know what they are selling.The in's and out's of a computer.These are the people that deserve my respect.
2:They are the moron that knows nothing about computer.When a customer comes and ask them what is this and that,they will give you a textbook explanation.Why would i want a textbook explanation,i can simply save the energy and find myself.We do have Google available to us.Furthermore,when you want to buy parts and ask for some recommendation,they will simply point you to the highest price available on their price list hoping you would buy it,giving him more profit or blarh blarh other reasons.

So my advice to all the people out there is bring along a tech-savvy friend or a geek if you want to shop for anything PC related stuff.If not you will be slaughtered by those morons.