A lot of very expensive items are things people want because they visibly signal a certain level of wealth (diamonds, big homes, expensive cars, etc). You don't need to employ an outbound call center to sell Ferraris because they people who can afford them (and many people who can't) will seek out places to buy them so that they will be able to send signals to others about their wealth.

No CTO gets to show off their expensive developer to other CTOs and brag about it.