I think you're right.
Also, a lot has to do with care/abuse of them. Look at all of the older cleaners which are still around, AND working. Parts, also, are a factor.
As far as what happens to them after us....... that's been discussed a lot.
some of mine are "promised" to others. Some have very careful notes/instructions as to what to do with them.. We just hope they don't just end up "sent to the crusher".
Ridiculous.
