The fault we run into most in Elizabethton isn't a dead motor - it's a header that was never built to carry one. Median year built here is 1964, and a lot of garages from that era were framed for a swing-up or simple roll-up door with no thought given to an opener bracket. When a homeowner adds a chain-drive unit decades later, it gets lag-bolted into whatever stud is closest, and that bracket works loose within a few years because the load path was never right.
That 1964 date matters for a second reason: houses this age usually have had one opener swap already, sometime in the 80s or 90s, and that unit is now past its working life. The bracket problem compounds - you're not just installing new gear, you're correcting a mounting job nobody checked twice. We see this pattern across the older pockets of the service area, and Elizabethton's housing stock sits right in that window.