I have been all over dirt roads standing on my cheap SS pegs (Liard hwy, Depster, Robert Cambell), and when the bike tipped over at a rest stop, the only thing that broke was the aluminum peg support behind the peg.
But if people feel like they gained something by paying $200+ dollars for pegs, then I am happy for them.
I paid $150 for my shorty Pazzo levers and am happy with those. I tried the cheap Chinese ones and they were all crap. Chinese Pegs seem to be good though, and I have never read about someone having one break and causing death, but it sure makes a great one liner. lol.