I have a a gift certificate for $2,000 to be used at the Vein Center in Florida?

I dont want to use because I don't like going to the doctors or anything like that. This can be used for Hair removal, Botox, Cellute, Vein Removal etc. I tried to put it on Craigslist for $1500 but I have no responses yet. Anyone know where I should try to sell it. I want to sell it. I am willing to sell it for $1500 but its worth $2000.