FORTUNE -- If you buy a lot of iPhone apps or iTunes music, Apple (AAPL) gift certificates are almost as good as cash.
Indeed, there's a lively trade in iTunes gift cards on eBay (EBAY), where a $100 certificate will fetch anywhere from $82...
FORTUNE -- If you buy a lot of iPhone apps or iTunes music, Apple (AAPL) gift certificates are almost as good as cash.
Indeed, there's a lively trade in iTunes gift cards on eBay (EBAY), where a $100 certificate will fetch anywhere from $82...