Only invited, registered eBay Bucks participants who receive the promotional offer from eBay in My Messages are eligible. Sorry, no forwarding—the offer is not transferable.
The Promotion starts at 12:01AM PT on March 28, 2013, and ends at 11:59PM PT on March 28, 2013.
Qualifying purchases exclude all items in the following categories: Classifieds, Business & Industrial, Real Estate, eBay Gift Cards (within the Gift Cards & Coupons category), Bullion (within the Coins & Paper category), and eBay Motors (except Parts & Accessories in eBay Motors, which will earn eBay Bucks).
Rewards are capped at $100 per transaction and $500 per Earn Period. Purchases must be paid for with PayPal before the Promotion ends. eBay reserves the right to cancel, amend, or revoke the promotion at any time. Other restrictions apply. See Terms & Conditions for details.
so does this mean we can buy GCs? (5% really is nothing to sneeze at for GCs, but kinda cirious