Every bit of consolidation in the market - and there's going to be a lot more consolidation - drops Groupon's customer acquisition cost, as less companies compe

Every bit of consolidation in the market - and there's going to be a lot more consolidation - drops Groupon's customer acquisition cost, as less companies compete for the same inventory. In the meantime they've built up an incredible amount of in-house traffic-buying expertise. In their unprofitable push to get huge, Groupon bought every type of ad unit available. I wish I had a sliver of the data available to their ad buyers.