In my opinion eBay is the last place to buy a BB2 CPU.
#1 the high eBay fees are passed right along to you increasing your price by 20%
#2 How do you know you are going to get a board that works?
Many BB2 boards have bad video cards or processor boards
#3 Beware - many people in the slot business have multiple eBay accounts - as many as 7 or more!!! Why would they do this? -
I think it's to artificially drive up the price on items.
You have many legitimate vendors listed at the top of the page.
Do your homework and call each and everyone and see if they have them and what they are charging.