Alain,
just one dumb question: you write that you sold your Technics because you hadn't enough time to play it. So, why on earth do you think that you need now another keyboard? I don't mean to be overcritical or sarcastic: I am just trying to help you determine if what you really need is a new keyboard. You know, sometimes it's easier to blame an object for our dissatisfaction, which really has something to do with what lies inside us...
I mean, you have had the best arranger keyboards on the market and you sold all of them!
I don't know what is your skill level as a player; me, I consider myself a less than average player, but at least now I know that when I am not satisfied with a keyboard the culprit is not the keyboard: it's me! So, instead of buying another keyboard, now I try to improve my playing skills, for example learning a new song, especially one I consider difficult...and guess what? All of a sudden my old keyboard works just fine!