Most of the houses this business serves went up between 1950 and 1994, with the median close to 1976, and the bulk of that stock across the area's 21 named neighborhoods dates to the 1960s and '70s. Openers installed with those garages, or swapped in once during the '80s or '90s, are past any reasonable service life. Gears made of the plastic composite common in that era get brittle. Capacitors dry out. Circuit boards that were fine for twenty years start losing their programming in the cold.
That cold matters more here than in a milder climate. This area sits in a severe cold band, and an unheated attached garage swings through a much wider temperature range than the living space next to it. Motors built for that era weren't engineered with today's cold-start tolerances, and the grease in old gear housings stiffens up hard enough to strain a worn motor past its limit. A newer opener with a modern drive and sealed gearing handles that swing without complaint. A 1970s chain-drive unit does not.
With 22,060 owner-occupied houses in the service area, a lot of them are running exactly this combination: an old motor, an unheated garage, and a Michigan winter.