Just get the 50D if you like the old style body. Bear in mind the 50D is towards end of life (marketing perspective, not operationally of course!) it is quite low price now. Never mind trying to give it a category. Does it do the job you want at the right price? As long as it is priced right I don't care if it is plastic or whatever. The question I'd have is whatever other new stuff they put in it better be good to make it worthwhile going over the 50D for it. Think it'll take more than a tilt screen for that!
Canon 1D, 300D IR, 450D full spectrum, 600D, 5D2, 7D, 7D2, EF 35/2, 85/1.8, 135/2+SF, 70-300L, 100-400L
EF-S 10-18, 15-85, MP-E 65, Zeiss 50/2 macro, Sigma 50A, 150 macro, 120-300/2.8 OS, Samyang 8mm fisheye