Don't think for one second Yamaha designs their arranger products for the professional market, that simply isn't their target audience. If you did a demographic you'd find most owners to be elderly, retired, middle class, non professionals. The bulk of the remaining purchasers are parents who buy the arranger for their children to play with. Any professional who buys and uses these products probably doesn't make up 1% of the overall sales. Another thing to consider is that arranger sales as a whole are minuscule compared to all other electronic keyboards. Ian claims the Tyros 4 has outsold the Tyros 2 and 3 combined and I'd find that difficult to believe. Why? Because keyboards of any type be it arranger, professional, or otherwise that cost more than a few thousand dollars do not sell in high numbers. Tens of thousands sold would be an astronomical wonder. The majority of these products sell very low numbers but the manufacturing cost is low enough for the manufacturer to recoup and make some profit. The higher end products are merely launching pads to sell lower end product by incorporating many of the same features at a much lower price point.

If you're expecting any new product from Yamaha to vastly improve on the existing Tyros 4 it won't happen. Yamaha could do it but it would hinder sales overall and make future product much more difficult to design. If they manufactured a model that was at the pinnacle of what technology has to offer, they'd need to develop new technology to supersede it which would be more costly than the returns.