Can't ALL SEO be copied? Organic or Paid, isn't there always someone that can do it better? Well...not better than CarGurus from where I look, but I admittedly am just learning. And talk about a small competitive window, what about all 3rd party sites? My competitive window is only limited by my willingness to give away gross profit.
What do you mean when you say LotLinx is restricted to a certain number of search engines?
I use PPC right now, and performance wise, it isn't very good. Sure I get to pay Google a lot of money which really excites me, but the traffic metrics are absolutely pathetic. 2.7 pages per session, about 25 seconds, with an 88% bounce rate. It cost a lot of money, but at least the traffic behavior sucks!!