I'm exactly like that. I can't understand how so many get so rich and forget about the few that were around joking with them and helping debug things from the start. It was so great and transportable. We only have one brain, and for many that are new, or just not computer savvy, or old, or slow, the single button is much more comfortable. But when you look at the cortex of the brain, the amount of space allocated to your fingers outweighs almost any other part of your body.
Fingers are very efficient and controllable.
It's a shame to restrict this incredible operating plus. After all, we use all 10 fingers just fine to type. I love a 2 or 3 button mouse and find it as easy to use as going for command keys. I also love the scrolling wheels. I don't always have only one answer on the menu bar question.