What kind of paintball are you playing? I've been playing for a few years and have never seen anyone wearing one of those. Granted, there are the "war game" type events, but those don't take place as often.
I play speedball, which is usually 5v5 and the games are fast moving and quick, time wise. Most people wear brightly color uniforms to distinguish their teammates from their opponents. There's no hiding, and anyone who stays put for too long will get nailed sooner than later.
What type of marker are you looking at?
Here are a few great info sites:
http://www.paintball.com
http://www.warpig.com
http://www.pbreview.com