No matter what you think you are selling, you are always selling the buyer's experience. And for some work, framed the right way, high prices improve the experience.
Nobody will follow that up with "but what does it taste like", they'll say "oh that's very interesting I'll take it", despite the fact that the whole point is the taste.
By the way, there's nothing wrong with this. Experience is HUGE in how you perceive something. Consider your favorite wine from your honeymoon.
Let's say you're at a restaurant on the beach in Greece, the sun is setting and the weather is perfect. There's a light breeze, and you can hear the waves gently breaking on the shore. You take a sip of the wine and it's wonderful, so you buy a bottle and take it home. You rave to your friends and when you finally crack it open, they're not nearly as impressed as you were. It's not an uncommon story, and it's because half of the enjoyment was the perfect day, the perfect weather, the perfect setting.
It is question of marketing.
People will definitely buy stuff JUST because it's expensive.