[Bigdaddy]

To the OP's question, I believe that for high profile players who are no-question Hall-of-Famers, then the price of their cards already reflects their inevitable election. However for guys that are on the edge, for whatever reason, then their election will provide a bump in the prices of their cards/autographs/etc.

For a recent example, look at Ted Simmons. I don't have any numbers, but I would believe that his RC, at least in higher grades, got a bump. Same with his autograph as the demand from HOF collectors increased. His more common cards, probably not so much.

With Jackson, and the very limited supply of his cards, I can see a bump should he be elected.

The question as to him being on a HOF ballot is (and always has) been purely up to the HOF, not MLB. And should his name appear on a ballot, then his election is up to the appropriate committee members. And while his actions/statistics/guilt/innocence has not changed one bit in the last 100 years, his eligibility to be elected to the HOF has.

The bottom line is that MLB has essentially washed it's hands of HOF eligibility of Jackson and others and left the decision in the hands of the HOF.