What would you pay for a tequila dispenser?

This is in no way an advert. I have a tequila dispenser (in the uk): you pour tequila in the top and it cools the liquid. You then push a button to dispense it out of a tap in the front (you add your own tequila of course). I am thinking of selling it (in the UK) but want to gain a general idea of how much I would get for it. It is brand new (never used and in plastic wrapper) really heavy and about as big and wide as a portable tv. It has the attachment for bottles and I am throwing in a tequila drip mat if I do sell it. (The Brand is Jose Quervo). So how much would you pay, I will take american answers as I am handy with online convertors. Thanks for your help.