If you keep your eyes open, I believe you may run across a German made Corona.
Define senior citizen ... I'll bet I am up there with you and I am still at it.
I called the Button Box for some guidance on the currently made 3 row entry level boxes...
Their opinion was there is no better value than the Hohner Panther in that price range.
If you have a chance call Doug Creighton at the Button Box , he's a straight shooter.