Also, if you put the same wine in different bottles, they pretty reliably prefer (and describe the rich complexities of) the more expensive bottles.

I knew an audiophile that believed the government had top secret technology for additional audio channels in surround sound setups, like 17.7 or something. I tried very hard to explain how you can buy an off the shelf 128 channel recorder/playback device, and have as many channels as you can feasibly buy and set up, and the reason a lot of media was recorded in 5.1 was because a 5.1 setup was considered at the upper end of what people would be willing to pay for. He moved his target in response, to now the government has top secret 1000 channel audio equipment.

I don't know what the equivalent of the wine world is, but I hope never to meet it.