Try eight years! And ten for the G1000 before my G70.

And, in all likelihood, I'll still be playing my G70 with live bands for quite a while longer, simply because of the speed of the interface (although jury is out yet on whether the iPad apps will make that moot) and that wonderful action.

I'm actually playing more on my BK-9 at home than I have on an arranger so far, because of the Chord Sequencer. It's nice to finally have a great arranger that doesn't require me to be a one handed dummy, and let's me play two handed like I've been doing all my life..!