How much do MIDI DIN ports cost to add in? There have been a few budget, light weight, 73 key'd pianos released recently that would have been perfect for a bottom slave board, but alas, no MIDI ports. Surely companies realise the market they miss out on by not including them?
I don't know about cost, but it seems like keyboards which are aimed at home users rather than gigging performers tend to have USB-MIDI only, so I guess Casio isn't targeting these new CDP models at gigging performers.
It's no big deal to me, because I'm strictly a home user and I usually keep my keyboards connected to my desktop computer via USB anyway, so my computer does all of the MIDI routing and processing that I need.
But I know that some home users won't seriously consider adding a 'board to their setup unless it has MIDI DIN ports so they can directly connect it to other equipment.
Pet peeve of mine. I bought a USB mid DIN adaptor for this situation. I posted a thread about this - Scott chimed in and give several other options which I was not aware of, UBS Midi DIN Converters
Korg Kronos X73 / ARP Odyssey / Yamaha CS6x / P140 / Motif ES Rack / Akai MPK249 / Roland D-05 / JP-08 / Novation Mininova / NL2X / Waldorf Pulse II MBP-LOGIC American Deluxe P-Bass, Yamaha RBX760