Do roofing companies try to scare potential customers?

We had two hail storms in Austin this spring, and now I find circulars on my door every day from different roofing companies. Two or three houses in my neighborhood have had their roofs redone, but none on my block. By the way, my house is only two years old. I spoke with one roofer last week who did a 20-minute sales pitch on why I needed a new (and expensive) roof, and how he could extract extra money from my insurance company (which has already paid me $3,000). Does this border scam or should I be genuinely concerned?