No, Donny, I don't have to upgrade for my personal use...I'm pretty sure the Tyros4 will be all that I'll need.

I am also fortunate to receive the latest arrangers from Yamaha to facilitate my demoing and/or clinics on those instruments...I never use these instruments for personal playing jobs, without permission at least, especially if it is something really new and not for public view.

For my own gigs, it will be Tyros4...for Yamaha's jobs, it will be their most current model(s).

I'm also working (how appropriate) on the latest Yamaha workstations.

Ian