Yes, I agree with you to think long and hard about the decision. I also agree with you that the weather does takes it toll on the courts in the north. However, poor construction seems to the reason for this. Local asphalt companies are asking 15K for the asphalt - nothing else. And most of the asphalt courts in the area are cracked and wavy, even the club I'm playing in. And they paid 25K three years ago to have it re-surfaced by a "professional" consultant.
Anyhow, I will consult with another club in Belleville that has four clay courts in regards to 1929 document quoted. I'll post the outcome in the next few weeks.