My boss asked me once why I thought I had to spend so much on a keyboard. I asked him why he thought he had to drive a BMW when a Chevy would get him there just fine.
Never heard about it again.
I pitch my keyboard as the Aston Martin of the keyboard world. I tell them to tap the body to see how hard it is, feel the separate keys, understand the actuation point, and let them feel how heavy it is. It helps a lot of there's a regular rubber dome around to show them the difference.
But you'll always encounter two types of people: those who would rather not spend so much on a keyboard (understandable) and those who buy something pointless, like an iPad, yet think a good quality keyboard isn't worth the money. The latter I'll never understand.
Also, I've got a ghetto clears MX11800 that I show to people...when I tell them it's a ~15 year old keyboard and still works fantastic, they begin to understand the value in a good quality keyboard. I feel like monitors, keyboards, speakers, and mice should last through multiple builds. It saves you money in the long run if you buy quality peripherals the first time.