Worm bin or not?

It seems to me that a worm bin is one of those things that you are supposed to have when you are living on any type of organic farm.  I built one a couple years ago and I'm not really sure if I want to keep it or  not.  It seems to me that it is extra work and extra space that is just not necessary.  I do get good castings and good compost tea, but in small enough quantities that I can't really do much with it.  I could build a much larger bin, but I'm not sure I could then feed it well enough.  There are only three of us in the house right now so we really don't produce much scraps.  Every time I feed the worms, I have to put all new bedding down which does take up some time as well.  I think that throwing all my kitchen waste into my kitchen scrap composter is far less work and I seem to get just as good fertilizer out of it.  I also get it in much larger quantities when I go to use it because the can is much larger.  If you lived in a place where you didn't really have much yard space, a small worm bin could be ideal, but I think I'm going to just stick to a bigger, "lazier" type composter for my house.  Half of the idea of permaculture seems to be less work for more gain anyways.  Set things up so that they are efficient and mostly function on their own.  The worm bin doesn't do that for me.