I believe the color choices were just what Don happened to like, and what he thought would sell. I think he limited the colors just to make it easier to keep track of the cars for inventory purposes, etc. If you notice, he usually ordered a specific number in each color, rather than a random mix of colors and quantities of each color. Why he didn't chose certain colors is probably the same reason any of us wouldn't choose certain colors... personal preference. Speaking of which, I'll take FG over GB any day, thank you very much.
