Exactly, i'd feel the same.. I think a lot of people are scare selling the 473's at the mo due to the 455's. If i payed a lot for a laser i'd be hanging onto it instead of making a loss.
Getting back to synths.. I used to collect analog synths. I'd love to get half of my gear back for they price they go for these days.
At the mo i use Propellerhead Record, Novation SL61, Novation Zero SL, Edirol UA-25EX audio interface on KRK RP monitors and KRK sub.. The sound compared to the old dogs is awesome. You hear a lot about people harping on about how warm a jupiter or sequential sounds and that you can't replicate that. Wrong! Its damn close if not better and ultimately more flexible. The other option is to use some other DAW that supports VST's and use soft synths.. Some pretty amazing synths around these days, Xylength, Zebra, Z3ta to name a few. Some brilliant software versions of the old Roland stuff mentioned earlier too.
Its all about space for me these days. I have more power now with my tiny setup than i had when i had a room full of 20+ analog synths.