I think it would depend on the state and the cost to fix. I live in an all glass house and it has old single pane windows. We experience cold winters and my wife likes to wear shorts in the house all winter. Even with that, I can’t justify the cost of new windows or insulation because our heating bill just isn’t that crazy.

However, if I lived in Texas, where it seems electricity can have wild prices, I might be interested.

To me the audit seems like more of the hook to sell the solution.

Is there an electric co-op around you? They will usually do an audit for you for free. Doesn’t hurt to ask.