One of my most recent "lucky to live in this age of photography" moments was printing a 16x20" informal portrait of a relative's baby made with my 7D at ISO 800. If I had seen that print 10 years ago I would have guessed that it had been made with MF and portrait film with an ISO no higher than 160. I would have never believed it came from 35mm much less APS-C. My 20-24" landscape prints can stand next to landscape prints from 6x7. At larger sizes 6x7 will show its advantage, but not through 24".
This image quality is not enviable? Really?
It's all relative, though. We're not comparing today's camera with one from 10 years ago or 25 years ago. I bought my first Mac 25 years ago, and paid hundreds extra for the optional internal HDD. At the time, 20 MB was 'huge'. Today, one RAW file from my 5DII is bigger. Technology moves fast, and that impacts photography.
@OP, sorry you got stuck. Newegg's 7D listing states, "Return Policy: Limited Replacement Only Return Policy." So, if you think you got a lemon you can exchange it. Else, you're likely looking at a 20-25% loss to sell it used. Or you could play Santa and give someone a really nice gift...