I am afraid it is going to take one of the major players to FINALLY give us the 'open' arranger that starts out as a TOTL arranger, and then offers VSTi expansion past that point. And, when they do, they will make a boatload of money, and Dom will be sitting around in his closed down factory, wondering what in the hell hit him. But I doubt his ego will allow him to admit to himself that he WAS told what we wanted, he was just too cheapass to provide it.
All we ever get is scorn from him that we are so stupid as to need a decent arranger as a starting point for our own efforts. Mind you, so far, he hasn't managed to achieve the vaunted 'potential' himself yet... If you have no respect for what your customers actually WANT, and keep dishing up your own vision, no matter how definitively proved it is that no-one can use it well, you deserve to go under. It's what he expects his competition to do all the time, for being so 'closed', but it is them constantly proving to him how wrong HE has got it...
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An arranger is just a tool. What matters is what you build with it..!