Yeah, it’s worth noting that, roughly speaking, advertising supply chains provide 51% of spend to publishers and 7% to agencies, which means the middle of the chain (supply/demand-sides, DSPs, analytics, etc.) consumes 42%, or what GOOG allegedly takes at the high end. Given that they represent a fully-integrated supply chain, this doesn’t seem unreasonable, especially given how many competing ad networks are just bubble gum and duct tape.