Thank you JCJM, a very succinct and interesting reply! When you think how much these watches were new the market for vintage HEQ has a long way to go just to match inflation!
I think that purely from an aesthetic point of view, the unique nature of the Omega designs from this period must secure their place as investments for the future. I expect that this post has got a lot of people itching for a stardust or a MC in their collection!