a lot of us are folks for whom a tractor is a luxury. For some of us it is an expensive toy. We might keep it a lifetime or we might sell it after a while. Or, if things don't work out well, we might _have_ to sell it for financial reasons.
From the luxury/toy perspective, why not keep it nice and pretty? The short amount of time it takes to wash it doesn't really take us away from tractor related income.
For those of us still paying or who wish to maintain resale value, I think keeping the paint looking good is very important. The main reason is that for CUTS and sub CUTS, the potential buyers are usually going to be people like us...you know, we like 'em pretty and we want a cup holder. /forums/images/graemlins/grin.gif
It might be purely psychological but I think you are more likely to get more from a tractor that looks good than for a tractor that is just as good mechanically that looks beat up or uncared for.
Yes, sometimes I feel a little foolish washing something that is going to be covered in mud or dust in another day or two, but it may pay off one day and even if it doesn't, its nice when it at least looks new. /forums/images/graemlins/wink.gif