what is expensive for one is just pocket change for others.
Rich dudes are not stupid and tend to understand a thing or two about economics better than the avg hifi nerd.
Try selling Warren Buffett wire for 10k (because because...got to keep the lights on, R&D, yada yada, boo hoo, same old hifi cable sales guy sob story). Tell him "you are rich, so, why not buy it?" He might just gently waltz you out of his house.
Always try not to insult some rich dude’s intelligence with such statements. "You are rich, so why not?"....that’s gotta be about as insulting as it gets.