I ordered one of the Oxford shirts and don't understand what's so great about them. Paper thin fabric, not cut long enough, the aforementioned collars, and comes in undie packaging! You guys have to be joking.
Cut too short? Well that's a matter of opinion... also, I think they're cut short because they're meant to be worn untucked. As for the rest: like you said, its a $30 shirt, what did you expect? The stuff is decent enough quality for as cheap as it is, and people are buying it as beaters, not in place of their BOO or RRL or etc shirts.