Hear what you're saying, but actually, the fine glass came at pretty cheap prices so could possibly make "most" back on a trade, and going for even finer glass on Canon is mucho expensive. So I guess the search is also wider, new Nikon coming, new Sony, and also take lens prices into account.
Pentax came to mind since it was suddenly brought to my attention by somebody else buying one and seemed such a deal at it's price point without "features" we don't use eg not sure about Live View either. Check out the Pentax review and it is compared well to 30D and I think the Nikons (Ignoring jpeg). Check out the 40D review and no mention of it. That's why I missed it as an option getting the 400D. Is it that far below the 40D as a RAW shoooter ?
And lenses was another trigger as was looking for a macro. The ambition has to be to go full frame some time, so refraining from MORE EF-S's. But on that basis either stay Canon and dream of new 5D, or maybe go Nikon, since Pentax ain't in the full frame frame (yet)