> What is worth more; a car purchaser, or a Facebook user?
You're talking like the answer to this question is obvious. People will keep cars for 10 years, and they're as likely as not to get them from Toyota instead. At this point, Facebook is probably making a little bit of money (indirectly from Ford advertising) from that car purchase. Not as much as Ford, sure, but Facebook extracts a little bit of revenue from many, many consumer transactions.
You're talking like the answer to this question is obvious. People will keep cars for 10 years, and they're as likely as not to get them from Toyota instead. At this point, Facebook is probably making a little bit of money (indirectly from Ford advertising) from that car purchase. Not as much as Ford, sure, but Facebook extracts a little bit of revenue from many, many consumer transactions.