We've run into a couple guitars through the years that the store owner thought the repair was so good that he didn't need to disclose the fact that it was repaired. One guys response was, "if it was repaired, they sure did a great job"! Another claimed to know nothing about it until he contacted the previous owner, whom he'd known for years. In both cases, the repairs are still holding, but they should have been disclosed up front. Now it's one of the first things I check.