Tons of black dust? Raybestos

Here's a nice little break down on brake pad materials and their pro's and con's, pretty decent article actually-

Ceramic vs. Metallic Brake Pads | Bridgestone Tires

Or the reader's digest version-

Asbestos- Kills you.
Organic- Cheap, low performance, quiet, great for leisurely cruises
Ceramic- Expensive, moderate performance, super quiet, hard on your brake fluid and piston seals
Semi-Metallic- Affordable, high performance, noisy, dusty, harder on rotors than organic or ceramic

The faster your brakes can bring you to a stop, the faster your brake components wear out. Personally, I'd rather change rotors and pads than bodywork. If you're worried about wearing out your rotors, stop driving the car.