Darien's median household income sits at $250,001, well above the $183,112 median across the rest of the Stamford service area. That number matters more than it sounds like it should, because it changes the math on a dying opener. In a lot of towns, a homeowner will nurse a chain-drive unit for another two or three years past its prime because a new one feels like a stretch. At Darien's income level, that calculation flips fast - the cost of a modern opener is a rounding error compared to what a weekend stuck outside (or a door that won't close while you're at work) actually costs someone. The second piece is the housing stock. Darien's median year built is 1957, a decade ahead of the 1955-1984 range and 1968 median we see across the broader service area. Openers in houses from that era were often added or swapped out long after the house itself went up, so you get a patchwork: a 2000s opener bolted to 1957 framing, with mounting points and header clearance that don't match what a contractor would frame in today. That mismatch is the actual failure point, not the opener brand.