Surface too slipery for Microsoft?

Seems the latest brainwave to hit Redmond is an offer (US only as far as I am aware) to rebate your “gently” used iPad 2, 3, or 4 for $200 gift card redeemable at Microsoft stores. Presumably to help shift their Surface devices. The ones that have been pretty much universally panned by…well everyone.

Good idea or desperate grasp at straws? I am leaning towards desperation.