I doubt we're the first to consider this but we run price comparison sites and we now have a pretty well honed model that is profitable and easy to replicate. When we started we built our model on a ppc costing so we know that we can turn a profit without ranking... but when we do rank the margins get a lot better and so we're thinking that if someone has the right domain we could make some money together. We would need top domains to turn a profit quickly and we'd need to know that it was going to be up for a given period... I suppose we could just rent but we thought this might appeal? A good example of what we do is ipodprices dot co dot uk Interested to hear what you think, thanks in advance.