That is a crazy amount to pay for speakers. I thought maybe you were going to tell a joke when I saw the title. Sadly, I do believe there are people who would pay that amount. They'd be rich enough not to miss the money and would probably enjoy letting slip what they'd paid.
I've not yet built any speakers, but my dad used to make speakers from the old tube radios that he found in second-hand shops. The quality seemed great to me at the time (this was in the 1980's). And he once sold a set of 4 that he'd made for 25$