I started out with a K450, which basically got me started with portable keyboards.....I then moved onto an AX5, then an Kn1000, which I purchased in '92.....I've been using it until last month, when I purchased a Kn2400....
Needless to say, the change in the boards from the Kn1000 to the Kn2400 is unbelievable, & I am very happy with my new purchase....
Like Cees says, it keeps me off the streets...
Cheers,
FlutteringBy