Used all the way. Better yet, DIY by buying a kit and grabbing a used fridge....at least around here, used built dorm fridge kegerators like that run $400. $200 seems like a steal with the tower, 2 tanks, keg, and reg....check it out, if it looks half legit get it. Ignore the tubing if it's grungy...it's cheap and easily replaceable.
Hrm, on second thought, that looks like it might be a commercial kegerator. No big deal, you can EASILY convert it by just taking off the sanke coupler and putting on two $7 quick disconnects, but you'd have to buy a couple cornies if the keg he says comes with it is a Sanke. No worries, I'd still go for it if it looks legit.