Also: No one should take it too personal if Sequential doesn't always release exactly what one had in mind. Such attitudes say more about a user's consumer behavior as opposed to actual musical needs.
I can't even begin to understand why someone should take a company's decision to build this or that personally. If a company is offering something I don't need, I just don't buy it. Simply as that.
Probably everyone has hopes for a specific kind of synth with specific features that would suit him well... and so do I. But I'm also hoping for peace in the whole world, being CO2 neutral and enough living room and food for all humans and animals. Should I take it personal and quit planet earth, because my dreams don't come true? It's just out of hand of a single customer to dictate what companys have to sell. It's in the hand of the many (the market) to make a company build the products that are wanted a lot. And currently there is a market for re-issues.
And I can fully understand that need for "old" synth. I'm in my early thirties now, born at the end of the 80s. The music that influenced me the most is therefore the 70s and 80s music my parents listened to, when I was a child. Until today I did not hear more pleasing and musical synth sounds than those produced by Prophets, Oberheims and Moogs. Unfortunately I'm too young to have had even a chance of buying the originals. And for the obvious and well known reasons I'm not interested in buying an unpredictable 40 years old instrument. I think a lot of younger synthesists have had similar influences and dream of having those synth themselfes.
But it is not only the sound itself, which one could also get with samples or "synth based on" older ones (more or less). It's the whole feeling and experience about playing such an instrument. As I said, I'm struggling between a P6, which does the job pretty well, and a P10. And at the moment I'm tending more towards the P10, because of those big knobs, the wood, the 5 octaves (especially this one, since I'm actually playing it by hand rather than sequencing from elsewhere). Only a new revision of basically the same instruments can give you that. Some modern improvements like aftertouch and velocity, USB and more memory, that don't change the sound engine itself are very welcome, too (I see aftertouch and velocity more as controllers than part of the sound engine).