Hi, I am deciding what I will be purchasing for my first lens and I was really interested in the 50mm. Here is where my question develops, I know the 1.8 is a hell of a lot cheaper than the 1.4 and produces still really really good quality shots but I heard the make of the 1.8 is rather ****ty and tends to break down quite easily?? I was wondering what people's opinions are on the 1.8 vs. the 1.4 and is the 1.4 a better investment all together?