Nothing. Perhaps a little to a collector if it is in pretty nice shape. The thing is, the cost of shipping kills its actual cost. If you sold it at a garage sale you could tag it at around $20 or so but some one would offer you $8 and you'd say, "how bout $16," and they'd counter with $14 and you'd say "done".
In short, its a crapshoot to find the right buyer, but you ain't looking to make a fortune like selling an origional Lisa or anything.