While people can surmise that owners of SA-10 and Ruby have had laser issues and not post about them is fine. But it is not first-hand knowledge of such.
I have a friend who bought an SA-10 from Music Direct last year. Within a month it was at George Meyer for warranty repair.
He did not post about it.
No surmising involved. First hand knowledge of such.
EDIT: I don’t know George Meyer’s service policy for out of warranty Marantz components. Give them a call.