BuyDig has a coupon code "VOYAGE" (expires soon) that $30 off any American Tourister Luggage Bags. The 21" bag is already sold out, but you can find the 25" for $65, and the 29" for $85 (originally $280).

These prices are at least $40 lower than Amazon's, where the bags received high 4.4/5 stars.

These bags are selling out quickly, so move fast.