Posted By:
E, DanielDave, if there are seminars publicly airing practices to defraud ebay participants, I would think they should be out of business and out a whole lot of money in the very near future. If you have made note of any, I'd recommend emailing ebay with the list and am pretty sure litigation won't be far away....
And Rick - it's cardboard, not a blood transfusion.
If you feel that strongly about 24 hour turnaround payment and delivery, I would recommend emailing each buyer/seller of the cards you're interested in before the auction ends and asking if they can meet your demands. Because very very few people have the same expectations, and truly, you kind of sound like you're taking sportscard addiction to places previously set aside for hard drug users 
.
Daniel