Counterpoint, luddites! My Diadora X-Vortex Pros have two BOA closures on each shoe, and have well over 40,000 miles on them. They'd have more, but I got them for Father's Day in 2016.
The ratchets/wires have free lifetime replacement directly from BOA, and take about 5 minutes to replace. I put in new upper ratchets after around 25k miles, but the lowers will likely outlast the shoes.
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