Gav, if it can be saved I believe it should be. I would rather have an original part with a bit of patina than a new shiny reproduction one. Having said that, there is a limit and if it is dangerous to use or it just looks bad, case in point my rear lights, then there is little choice but to replace it.
To be honest I wouldn't hesitate buying one of those consoles to store away. The fibreglass units will only last so long.
Mark, group buy! No doubt I'll be buying lots of bits and pieces from the states so I'll be looking to consolidate as much as possible.