Just writing down the basic development costs for commercial synths if anybody’s interested:
Vocaloid: 54’000 dollars (from the Zunko crowdfund- likely has changed)
SynthV: 30’000 to 40’000 dollars (from the Solaria crowdfund, but Eclipsed had already partnered with Dreamtonics prior)
CeVIO: 31’000 dollars (from the Futaba Minato crowdfund- the actual fund recieved almost three times as much)