I usually buy my electronics at Best Buy since I live in Best Buy's home state so unless you go to a more general retailer like Walmart, there isn't really any other option. However I wouldn't consider them to be my favorite place... Actually if I know what I am looking for, I'd rather just go out to tigerdirect.com than to Best Buy. Although to those that aren't that tech savvy their employees may seem very knowledgeable, my experiences have always been the opposite in that I'm usually more knowledgeable than their employees.
I once bought a new car stereo that had a CD player capable of playing MP3 files. However as I like to create folders/directories of each album (and put the album folders into another folder for that artist), and as this new stereo didn't know how to read such a directory structure in order to play the songs, I decided to return it for a different MP3-CD stereo. When I was looking for a replacement, I asked the guy which stereo he'd recommend explaining my issue with the first so I wouldn't get the same issue again. The Best Buy employee proceeded to tell me that the reason why that one stereo didn't work was because I had put the files inside of the folders and the laser in that CD player wasn't strong enough to read anything inside of those folders. Even though we say we put files "inside" of folders, in fact a folder is just a listing of certain files with a pointer to the location where the file resides; the idea of folders is just a mental image to help explain the ideas even though the actual process is more likened to the old card-catalogs in libraries. Since I knew that there weren't in fact any depths to the file structure and thus no need for stronger lasers to read those files, I knew that he was just saying a bunch of BS, so I just thanked him for his help and came back a different day to work with someone that had more knowledge (which turned out to be a person that knew enough to know what he didn't know, and so read the manual of some of the other stereos to see what their requirements were for making the MP3 CDs).