This is like saying, because I prefer an all-wheel-drive car, it is for the same reason as buying a Ferrari, because who could possibly need a an all-wheel-drive car?
Other than people who drive in the snow.
Suits are warm and durable and fashionable, goodyear-welted shoes will last forever, be comfortable and weather-resistant, and aged whisky tastes different than non-aged whisky. You buy these generic categories of products for a practical reason. If you want to pay for the one that costs 10 times more than the others, that is signaling.
I was going to give Johnny Walker as an example, but here's a better one: George Dickel Rye. It's fantastic, it's $26, and nobody knows it exists. It's comparable to a nice scotch. So why don't people drink this instead of scotch? Because scotch has things this doesn't, and they're willing to pay whatever it costs to get it. At a bar, though, I always buy the Dickel if it's available, because you can't beat the value.