Well, Dave, it's funny you should mention that.
I have an old Sharp Carousel microwave from years ago. One day it just quite working. Popped open the cover, and found that the start button just pressed a little snap switch with about a 3cm arm. The local shop wanted $60 just to look at it. I found a place on Ebay that sold me a package of 10 snap switches for $8 with free shipping. It's still running today, and I have 9 spare switches if it ever goes bad again.
I do have respect for what electricity can do, however. It only took one good shock to teach me that as a kid!