Permit me to re-clarify, Crawfish. There are advantages to touchscreens, and yet you don't lose the ability to use a mouse and keyboard. Therefor, a touchscreen is better than a regular screen. Mass production lowers costs, so companies will stop manufacturing nontouch monitors and only manufacture touchscreens.
You are correct in stating that there are times when a mouse is better, and you will still be able to use one.