I am kind of new and just learning the market. I was wondering in the opinions of guys here What would you pay for a Tiger Woods autograph for your personal collection.  Not on anything overly special like a ball or glove. Just a signature on a photo, magazine, ticket, etc. 

Not really interested in a trading card. 

I know there are a TON of fakes. So say hypothetically it’s legit. How much does the price fluctuate between authenticated by one of the big 3 or not at all. Thanks, just trying to get a feel as I begin searching the market.