I can speak to the starter price. Have you looked at copper costs lately?
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Next, have a look at skilled and semi-skilled labor costs and availability. Have you tried hiring anyone into a manufacturing, machinist, welder, or similar role lately? Not only have wages risen sharply, the demand for skilled workers is higher than the supply.
I won't suggest that the business transition doesn't play any part in it, but inflation at the producer level is running higher than inflation at the consumer level (look at this week's reports). Small low-volume businesses have to pass these costs along faster than the big-box consumer outfits will.