Agree with the sentiment of the replies.
I did get a micro 4/3 camera, but only because I found that I had stopped carrying my DSLR due to its size and weight. The DSLR is without question somewhat superior to the micro 4/3, but you don't get good pictures if your camera is sitting in a drawer.
If you are happy with (and using) your DSLR, there is no reason to get a micro 4/3.