Best Buy's practices come off as very sleazy to me. Their service plans are a complete rip-off (absolute gold mine if you're Best Buy). You buy a $1,200 TV, pay an extra $200 for a service plan that "guarantees" 3 more years of protection, which when you think about it, has probably a 5% chance you might actually need to use the service plan because the product is almost 95% going to be built properly. And if it's a defect, you'll notice it in the first 90 days when your manufacturers warranty is still in tact. Then, in the remote chance you have to use your service plan, Best Buy will do everything in their power to void it by trying to prove that you are somehow responsible for the damage you did to your product. $200 of pure profit for BB. I hear they treat their employees like crap, from friends who have worked there.
I don't know how it is nowadays as I haven't bought anything of consequence there in maybe 5 years. Only way to go to get the best deals IMO is online. Newegg.com - saved $500 on a 47" plasma TV. Never once had to set foot in a Best Buy and deal with their shitty service.