Originally Posted by M0T0XGUY
Normally I'd agree with the "go big or go home" philosophy, but you're only giving up 2 mega pixels and a 1/2 inch of screen real-estate to save (presumably) 2-3 hundred dollars. The body and feel of the XS will nearly mimic that of the XSi you fell in love with, and, really, any visible resolution decrease between 10 and 12 megapixels (if it can be at all seen) will be nullified by the better lenses you'll purchase from the price difference. Again, I'm usually a proponent of budget pushing and model climbing, but in photography, you're better off sticking to that thought when buying lenses, not bodies.
True, the differences are minor and slight...
Canon EOS 1000D / Digital Rebel XS Hands-on Preview: 2. Comparison:
...but they all do add up, and they still make me wonder.