I recently bought a Mac from them. The salesman really hounded me about an extended warranty. I kept asking about printers, video cards, hard drives and other various accessories to go along with the new Mac. The salesman kept going on and on about extended warranties. After he gave up, he then brought his manager out who seemed perplexed that I declined and continued to try and talk me into the extended warranty (A Compusa warranty). I explained to him that I was knowledgable of extended warranties and pointed out that a consumer could purchase an Applecare warranty at any time while the computer was still under its original one-year warranty.
After I made it very clear that I do not wish to purchase the warranty, I quickly made my way to the check out line. The salesman followed along and STILL tried to sell me an extended warranty! They were lucky I just didn't walk out but I really wanted to use the Mac over the weekend. The store also poorly presented the Macintosh product. Needless to say, I will not buy there again.
I ended up spending an additional $2000 on accessories with online resellers. Those accessories are no doubt, more profitable for a reseller than the Mac Hardware itself.
Compusa would be well advised to make sure that their salespeople and management understand the difference between "offering" an extended warranty or "badgering" a customer.