generally speaking, the further from #1 your search result is, the poorer the ratios will be, regardless of traffic numbers (which are also drastically lower the further from #1 you are)
most surfers that make it to page 2 are getting good at finding what they are looking for for free I think ( and lately google is getting better at giving them the free content they are looking for on the first results page
)
I like msn traffic, there is just not enough of it