As Anthony stated they take tons of abuse without complaint, are conservatively rated, have a ton of built in protection, use all top notch parts, have large tanks, are smaller in size than most skids and have good resale value. Other than engine, transmission, suspension and build quality a Chevy is the same as a BMW.
If it's in your budget, you can't really go wrong. Tony has a very valid point though.. for a guy starting out that extra grand or so can buy hoses, reels and a modest surface cleaner.