How to reply to questions about stereo cost?

I really enjoyed this post; it's given me some suitable answers. I usually say something like; "oh gosh I'd really need to look that up to be sure" or for the total system costs something like; "about the same as a little car" That leaves it to their imagination. I've even given costs as a function of weight. How much is that amp worth? "Oh that...it’s about $75/lb". It really doesn't matter which component they ask about, the response and the look is always the same......."Shut up!! You’ve got to be kidding. Are you serious....man oh man whatever you're on, I want some too. What does your wife say about this”
I have my power amp sitting on the floor between my speakers and now when people ask what that big ugly thing is on the floor I just tell them it’s an electric furnace that doubles as an amp for my speakers. :)