Hello, and welcome to IFI! If you haven't yet, please READ THIS FIRST!!!
It looks like the heel got broken off this anvil and took the original hardy hole with it. Like ausfire says, if the rebound is good, it should still be functional.
Anvil prices vary widely by region, so if you could tell us what the seller is asking and put your location in your profile settings, we could give you a better idea as to whether that's a decent price. Half the price of the others isn't a good deal if the others are priced at four times the local going rate.