Buying domains with traffic
 

So I'm looking to procure a few new domains, maybe in the neighborhood of 10 to use to promote a new paysite I'm developing.

I'd like to buy some with a modest amount of SE traffic and put up a few free sites and promote them a bit.

I'm wondering how well the traffic generally holds up after the purchase and putting up a new page. Obviously I'll be working to increase the traffic, but is this the best way to get a little kick start for whatever I make on those free sites?