Luxury items don't tend to be discounted during Black Friday, de Grandpre says.
"You don't hear a lot from Saks on Black Friday sales," he says. Nordstrom and Neiman Marcus aren't really promoting door-busters, either.
The best markdowns usually come from Wal-Mart, Best Buy Co. Inc., J.C. Penney & Co. and Kohl's Corp., he says.
But one retailer will have its only sale of the year: the Apple store. For seven years in a row, Black Friday has been the only day when items are discounted there. But de Grandpre says that just because there's a sale doesn't mean it's the best value.
"Prices at the Apple store typically aren't the lowest prices," he says.
Licensed online retailers, such as Amazon, MacConnection and MacMall, generally have lower prices, he says.
If you're looking for a deal on Apple products though, you won't have to line up to find out -- the company offers the same deals online.