If I understand you correctly, you are having your driveway sealed each year? I always thought that every other year was recommended? We live in the country, and we don't even do it any wheres near that often. About 2-3 years ago, I saw a driveway in town being done by Williams Pave & Sealing, which still looks very good. He had a website which no longer exists, so I'm guessing he's not doing it anymore.