Wyndham Pahio gift card after purchase?

I'm trying to buy a Wyndham Pahio fixed week and all of the e-bay adds seem to sell for $1 and offer free closing. Plus they usually offer a gift card after closing equal to 25% to 50% of the first year maintenance fee. Is this legit? Perhaps just a way to set the market? Or is there something fishy going on?

Thanks.

Wyndham Pahio gift card after purchase?