Sure thing Grossie - It's really like investing in any collectible: art, wine, memorabilia, guitars, pottery, anything, if you're not an expert, you're paying a lot of money to have someone be an expert for you and any potential margin is severely impacted.
When you really on an 'expert' you're introducing a huge risk of fraud. I just watched Sour Grapes and remember being really amazed at the time all that was going down how obvious the signs of fraud were to me (with 20 years buying and selling sports collectibles) and how oblivious really experienced wine collectors were to it. But then Bill Mastro ran a crooked operation for 15+ years in the sports business and still fooled a lot of people in the industry and experienced collectors.
I guess it's like doctors, always get a second opinion