You're probably right PAF.
I wasn't trying to say it was a definitive decision make/break aspect (REF: superannuation). I don't know enough about it and therefore I won't comment- employer vs employer vs performance etc etc. I only mentioned it because it may be a consideration for some, depending on personal circumstances.
However it is something I (personally) would look into before making a big career change after a significant period of time in one organisation, perhaps maybe only to confirm I wasted my time looking into it.
Albert Einstein no doubt said a whole bunch of other stuff for a reason too....just gotta work out the reason.