Coronado has roughly 6,989 households, and the median household income runs $135,056 - notably higher than the $100,052 median across the wider service area. In practice, that shows up in the kind of openers and hardware upgrades we see: more belt-drive units, more battery backup openers, more doors that have already had one round of insulation or panel replacement since the 1974 build year median.
That said, plenty of original garage doors are still in service, especially on houses that haven't been through a full remodel. A door that's 50 years old can still run fine on its original torsion spring and track if it's been maintained, but when something does fail - a cable frays, a roller seizes - the fix usually means matching old hardware to parts that aren't the current standard size. That's the job we actually get called for most often out there: not a full replacement, but a careful match to what's already on the house.