Paypal digital gifts has a limit on the amount you can buy from them (using any combinations of funding sources), but I do not remember what it is (maybe $1000 every 30 days?). There is a rolling limit of $5000 of purchases every 180 days *using* ebay gift cards. It is enforced by the payment system. When I hit my limit earlier this week, I was getting 7 $50 target cards from GCM. Either I had miscalculated how much I had left before my limit and had to pay my shipping charges from my paypal balance (thank you, swagbucks). Every time I entered a $10 ebay card code to cover shipping, it would drop one of my $100 codes off (and I only had 6 codes entered, so I wasn't hitting a max number of cards limit). I still have ebay gift cards left for when I drop below my limit in February....