Well Lon, that's how I learned CW and passed the exam. I got into real QSOs with folks in Canada, France, Ireland, etc. and had some fun times. I sucked at the beginning but I got better. They were helpful and understanding while I learned. I'd copy by sound but it was nice to have the program there in case I missed anything.
My buddy and I have offered our services to several people to do the same. Many people get nervous getting on the air and this is a safe way to learn (especially if you know the other party).
I think it definitely has a place.