They will end up sucking most of your time away from you, with bugs, support tasks, feature requests, etc. Depending on how big the name is, it might be worth

They will end up sucking most of your time away from you, with bugs, support tasks, feature requests, etc. Depending on how big the name is, it might be worth it to snag them, if they would be come a reference customer and help you grow quickly. But it depends on your bandwidth. Do you have sales people that could make use of their name? If not, then don't give them a 50% discount and be ready for an onslaught of work from them.