For sure go Yamaha. Forget Technics. There're all done with.
I had a KN2600 and I can honestly tell you it really sucked. Awful tone. No where's close to the PSR2000.
For me it was a big waste of time. I sold my 2000 to get the KN. I have since sold the Technics and am looking to get another PSR2000.
The PSR3000 ought to make you VERY happy.
Scott