I maintain a spreadsheet to keep track of them, my current Scrap Yard tally is: 81

6 - Scrapper 6 CGs (2 Black Sterile, 2 Tan, and 2 Black w/ Logos)
3 - SS4s
2 - DM LEs
9 - DM CGs (in KC Fall 2008 colors, including Arctic White, Bama Clay, and Moss)
11 - DM DCs (I went way overboard, but they were released at such a good price)
5 - MODs
3 - YK LEs
9 - YK CGs (in various colors)
2 - YH (1 Black & 1 Tan)
1 - YG
4 - DF LE
13 - DF CGs (in various colors - includes one tank that I've agreed to trade, but haven't sent yet)
5 - MPLEs
2 - BDLEs
5 - SoD CGs (2 Black & 3 Tan)
1 - SoD LE (I thought it might arrive today, perhaps tomorrow)