A few personal observations.
Were Spector, Mystic, and Prologue outsourced? Did licensing cost/deadlines exist? Do you have access to any research showing usage of these 3 instruments compared to other Cubase instruments or more importantly 3rd party instruments? What 3rd party instruments replace these stock instruments? I think this is especially important when Steinberg looks at the huge difference of Cubase users, ie composers, sound design, EDM, etc.
You can suggest that the above is irrelevant or unacceptable, but resources are limited, and DAW competition is quite strong. I for one wish more time and money were spent on bugs, and what I consider unfinished features. But that doesn’t attract new buyers.
My take is that we live in a throw-away culture. The less expensive it is, the quicker it’s disregarded. A lot of plugs are $29 and the next step is free. It’s not so much about quality as it is about demand and perception. My feeling, and I wish I was wrong, is most users today still look to more expensive 3rd party instruments for the “best”…whatever that means. Considering Spector, Mystic, and Prologue I’m guessing that demand wasn’t there. If it were, I think Steinberg would have spent the resources maintaining it, probably paying additional license fees etc.
Go hardware for longevity but allow a huge compromise for what it can’t achieve. Very few revered synths have gained value. Most have dropped. Behringer has done a marvelous job of re-creating some old instruments, but I think nostalgia based hardware also has a limited life.
Soon VST2 will vanish only to be supported by 3rd party solutions which may or may not work. Many of us have had expensive hardware that was chained to software that today has become a brick. I have learned it the hard way, and going forward I attempt to be less shackled.
Due to my workflow and my number of Battery 3 kits, I have spent almost a year manually converting Battery 3 kits to Groove Agent. NI (Francisco Partners) isn’t interested in what worked under NI 25 years ago and cares little about abandonment. Just ask the developer of Absynth, Brian Clevinger. I certainly hope Steinberg gives more consideration toward long term musicians and their desires. It’s about building and maintaining long term good will. That takes many years and a lot of money.