yeah prime lenses are the bomb because they have way less lens elements than a zoom lens, this mean less distortion and better sharpness etc. Its easier for companys to correct the barrel distortion in a prime lens too. The f1.8 makes for some mean bokeh eh?

I'm saving for the 50mm f1.4 prime as my lenses have to travel a lot and get thrashed, same image quality as the f1.8 but build quality is better. Costs about 500 more though