Handmade / custom knives are quite popular among collectors and enthusiasts. They're expensive, you can't chuck them in the kitchen sink until the next morning or the carbon steel will start to rust, but they are just awesome to use, and I expect they'll be appreciated for generations to come.

Just for a reality check, let's say a top-quality, handmade, 8" chef's knife runs about $500. Most people consider an $80 mass-produced piece from Henckel or Wusthof to be rather extravagant...