True, may have just got a bad copy of the 50. At the time of purchase, I was more clueless than I am now with photography (isn't saying much) and didn't even realize you could get bad copies of lenses.
There probably is a a good bit of variation from one copy to the next in such a low-cost lens. I was clueless when I owned a 50 1.8, but at the time I felt that image quality was very good when I pixel-peeped it. What I didn't care for as much was the look of the bokeh, but that's a little more subjective.

