Donny is right on the money - 10 jobs a month is about 25 percent of what he does now and what I did until health issues caused me to retire. It's not the keyboard, it's the person behind the keyboard. If that person is a good entertainer they can work as much or little as they wish.
I still have my gigging rig, which consists of a PSR-S950, Bose L1 Compact and all the accessories that make it easy to set up, tear down, and get to the next job on time. From your posts, I'm assuming that you rely heavily on your vocals, which is what most of the more successful OMB entertainers do. The PSR Series does an excellent job of providing outstanding backing for your vocals, it's relatively lightweight, easy OS, and sounds incredible. Even Don Mason will tell you that, though he has jumped ship for a Korg.
If I were in your shoes, I would concentrate more on my vocals, add a lot of variety to your play list, and go from there. You have the hardware, and apparently, have the talent. Just expand on what you now have and you'll do just fine.
All the best,
Gary
