Oh yeah, I forgot to mention another reason I am interested in gallery brokers - consistent income. Even though I'm sending 100k+ clicks to content daily, it's spread over several hundred galleries. The top ten clicked thumbs from yesterday take the lions share of those clicks - 60k worth - but then there are still 500+ other galleries on my list! With a thumb preview I'm sending to galleries based on how much the surfer likes the thumb, rather than how well the sponsor converts. With a text TGP I could use a rotator that prefers to send to better converting sponsors.
So basically I don't have enough traffic to send to all of my galleries to be making consistent daily signup levels. With a traffic broker I get paid a clear amount per click and it's up to them (or the buyer) to convert.
