[alanmcorcoran]

A ding in the gas tank generally means the bike has been dropped. It's not the end of the world, but likely there will be other damage - typically to things like the mirrors, clutch or brake levers, pegs, directionals - basically anything that sticks out and whatever other part of the bike hit the ground. In most cases, none of this is serious mechanically, but, all things being equal, a non-dropped bike is preferred over a dropped one. $1500 is a good deal out the door. If you can get a 90 day mechanical and electrical warranty, I'd buy it.