Why bogus retail price from some sellers?

Why do some sellers pump up the list price? I am looking for a pair Harbeth P3ESR'S for a friend. The list price is $2100 before dealer discount of at least 10% off. There is a listing here of a damaged pair for $1800. The guy has the retail price at $2800 and shipping 3 times the real cost. Do they think that people don't do any research before buying?
Just curious!