Edit: Several hours after posting this I went to a big box store to check out their offerings first hand. After using this site, I knew a bit more about what to look for. Anyway, I saw an A/S Cadet 3 'everything-included-in-one-box' deal and when no sales people were around I popped it open:
The porcelain (from what I could see) was dirty and covered with powder and flakes the consistency of broken drywall, but otherwise the glaze appeared to be alright. One thing that (for whatever reason) did not bode well for me was that the American Standard log on top of the bowl was off center. Noticeably so. It may seem minor, but that struck me as being a warning sign of potential unseen faults (I over-analyze this stuff).
At least the Kohler Cimmarons next to the A/S LOOKED like they were built and finished professionally.
Bear in mind I'm no plumber, but if I was putting something in my house that would (hopefully) be of use for years to come, I want it to look nice as well as perform its intended function...