The service area runs cold-moderate, and that temperature swing matters more for nylon than most people expect. Nylon rollers contract in cold and expand in heat, and over fifteen-plus years of that cycling the wheel develops flat spots and hairline cracks you can feel as a thump every time the door passes that spot in the track. In a 2005-built house, that's close to two decades of cycling on the original part.
We also see rollers fail faster on doors that get used several times a day, which tracks with household income in this area sitting well above the regional median - more two-car households means more daily cycles per door, not less. The other failure mode specific to this housing stock: a lot of these garages were built with a slightly tighter vertical track clearance than older construction, so a roller that's worn even an eighth of an inch undersize will bind instead of just rattling. That binding is what burns out an opener motor if it goes unaddressed.