Why do you want to drop it?
It seems like not using it would cause more problems when trying to use other computers besides your own.
Might be fun, if you can actually learn it as well as you are now with qwerty.
Any constructive criticism as to why? I was thinking no because of the availability of keyboard. I don't see any Dvorak keyboard in my country ever but then again I was being biased.
I switched to dvorak for 10 years and made the switch back to qwerty because you have to type on other people's computers when you collaborate or teach.