Recently I made a post about being #2 in yahoo in two weeks...
#2 on Yahoo in under a 2 weeks
Well it has been about a month now and the site is still ranking well. I am getting my expected trickle traffic, however sales are still slow, but I expected that.
Anyways back to the topic.
I am ranked 4 on google for my main keyword, however I am still being sandboxed on this site. I am indexed but have no
PR and google is showing no relevant backlinks even though I have 1k in yahoo. I know for competitive keywords the sandbox can take almost a year to climb out of, but for niche marketing it doesn't appear to have too much effect.
Using this example I don't see any harm in buying new domains for your niche sites