If you own an autograghed 49ers jersery how much is it worth?

Answer 1

Memorabilia of any sort is only worth what a buyer is willing to pay. The owner's emotional attachments often conflict with the market. For example, my comic book collection has sentimental value, because I spent most of my money in my youth collecting it. To a store that sees thousands of my books every month, the value is based upon only what they think they can sell it for later. They can't sell your emotions to someone else.

This isn't true in all cases (like old cars), but your jersey could be worthless if it were signed by some guy off the street. An autograph by Jerry Rice or Joe Montana might fetch a little more, but I wouldn't bet your retirement plans on it.