Yes, one of the things that blew me away about luxury apartments in NYC is the level of soundproofing - both in the windows as well as the thickness between floors/ceiling (a foot plus, iirc).

Depending on where that 20 acres is, you can get it for less than the price of a coastal-city closet.

You'll have a hard life ahead of you, though.

You're right, haven't experienced anything beyond 10M. I guess at the very top you don't have these issues at all.