Hi. I am doing some long term planning. Trying to figure out a way on how I can convince the CFO of the need of a 300 2.8 AF-S. Right, the wife... I have a 300/f4 I can sell to put towards it if needed. My question though is what are some typical prices of the 2.8 AF-S used? Not AF-S II, but the first version of AF-S. I've done searches on ebay and so on. Can't even find any on completed auctions. This would be used primarily for sports btw. So what are some ballpark prices? Thanks.