1D2 > too used/abused but affordable
1D2n > price too close to 1D3 relatively speaking since I already have budget for 1D3
1D3 > Dun feel like paying $6K++ for a cam halfway into it's product life cycle.. also D3 is coming soon. Again, expect competiton for heat up for this segment in the next year.
5D > gonna be replaced soon, no dust buster, not for sports/birding. one of the "cheaper" option using 5D for wedding and 30D for sports/birding..except the %@##$@ AF on the mentioned cams SUXXs.
D3 > need to spend $15K+ for a new system really have to think very hard to maintain dual system.