depends on the price, but yes it probably would put me off
I think you can access the data in the set, from the remote, to tell you how long it has been on for, which would give you a sense of what portion of its life has been used. If it really has been 3 months even at 10 hours a day then probably not too big a problem, but I would consider this like second hand, and therefore biiiiggggg discount.