Best buy knows to get people inside and keep them there long enough to buy stuff and get out. With such a big store, there are many demonstrations and demos of thier products. Thier customer service has a great wealth of knowledge of thier products. However it is all just a demo since after 5 minutes of seeing the product in action, you have a very good idea what it is and what it does to very extent. If you aren't sold by it then, then most likely, you won't buy it anytime soon.
PROS: good custemer service
CONS: none
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