I rarely have perfect binding - even on my quilts I enter in shows and I've been awarded a couple of ribbons.
I've gotten to the point on baby/crib/lap/utility quilts I machine bind (I personally feel its a stronger stitch).
On the one's I plan to enter, I always hand stitch the back side.
In my quilting world, it's just another part of the process there's always room for improvement on!