Okay people, I'll give you my personal decision for the Rebel "class". I am NOT a pro by any means. I am strictly an amateur that enjoys taking photographs. Because I am not knowledgeable I do a LOT of things wrong when going about taking photographs. Like a lot of others, I'm learning.
I like photographing model airplanes. Static shots are the usual fare, but action photos of a small model in flight are anything but easy. I have had to learn about lighting, panning, shutter speeds and positions. In the beginning I would just put my little XS in "sports mode" and start shooting. I turned the "view" off (still don't use it on any of my cameras) and the display all the way down to conserve battery power. I just got as close as possible and fired away. Using this "method" I have shot over 5,000 shots in one day at a large event. I figured (in the beginning) that I would get one keeper per 100 shots, in the beginning that was very optimistic! LOL! Small objects that allow only ONE of the focus points to be placed upon them and move at 60 to 150mph by you tend to be hard to capture. Takes lots of practice.
I didn't even realize that I WAS shooting so many shots at first. But in "continuous" mode - it doesn't take a lot of time to shoot a lot! As I've learned more and more about the workings of my camera(s). I have learned NOT to do this nearly as much and have cut down the numbers considerably. Reading this forum, I constantly read where the "pros" were very anal about having a "back-up" camera of quality for the times in which their main camera would fail on a shoot - and these guys only shot photos in the hundreds!! AND, these pros only used $1k cameras!
So I started to thinking about that. A lot. I finally decided to get a backup camera, hence the multiple cameras I now own. I owned a XS, bought a T3 off ebay. I use the T3 mostly now and keep the XS as a back-up. As cheap (cost - not performance!) as the T3 is, I reasoned that I would just rare back and shoot with it until the shutter quits or something major goes wrong, then just remove everything, lens, card and battery and drop the body in a trashcan and go get another T3 and go again. A shutter repair costs about $200 to $400 and I can now buy a new body easily for that price so no worries.
Hillbille
Rebel T2i, XS, Rebel T3; EF-S 70 - 300mm non L; EF-S 55 - 250mm; 50mm 1.8; 18 - 55 kit; YN-560; YN-468 - Pure Fun and Raw excitement.