This is the cheapest I have seen this lens in the past 5 years. The Canon photographers on Hukd, will know this lens is legendary for its ability to capture portraits with amazing sharpness and Bokeh (background blur). There are very few lenses in the world that can touch this in this respect. It's not a cheap lens and has limited use, but it can be used for indoor sports such as basketball in dimly lit situations.
I have owned this lens for a long time and have captured stunning images.
No doubt some will vote cold due to its cost but hey this is very cheap.