Yeah these sites are about to get fucked by Google anyhow, so it will only help everyone else over the next few months. Kind of the reason why I say buying traffic from Adwords search or content is dumb for arbitrage, because you're just recycling the same traffic, and if I were Google and saw, I'd get pretty pissed off, but chances of them seeing it are slim to none. Even so, you're just paying more for the same crap you could be getting for 1cent instead of 10cents. This is one of the reasons why people first fail with arbitrage.