Many game-used bat collectors like to acquire autographs on their prized gamers. The effect an autograph can have on the valuation of a bat can really vary depending on the player. Some players rarely sign game-used equipment while others sign routinely. For instance, the cost of having your Ted Williams gamer signed might cost you around $5,000 while the cost to have Hank Aaron sign your bat is approximately $150. Placement, content and strength of the autograph can also be factors.