I think that's an unfair comparison.
(Hardware) Synthesisers are pretty much feature complete, once a good one is made there's not much more you can add to it and therefore the evolution of them over the years hasn't changed much. I doubt the midi spec has even updated much since it was created? The only thing with much scope to improve on the audio side is mainly around software (better daws, synths etc)
This is like comparing sound cards to graphics cards. Good quality sound cards will pretty much last forever because we've reached the peak of human hearing and the latency can't get any lower, (I've had the same sound card for production for over 10 years).
GPUs however have loads of scope for improvement and so new ones are constantly coming out all the time, making old ones obselete.
This is like comparing sound cards to graphics cards. Good quality sound cards will pretty much last forever because we've reached the peak of human hearing and the latency can't get any lower, (I've had the same sound card for production for over 10 years). GPUs however have loads of scope for improvement and so new ones are constantly coming out all the time, making old ones obselete.