IE sucks but we all have to live with it. I came across many threads where users ask "who use IE now a days" and many discarded the same. But recently I came across a tool from statcounter which provide uses details of top 5 browser and to me it's amazing fact that
IE shares 64% of popularity across the globe.
So your website compatibility with IE is a must as you may be loosing your potential prospects. Here is the
resource link where you find global stats for 5 popular browsers.
You will see that IE is way ahead of every one.