Hey, it was 2002, and it worked.
I’ve been experimenting with whole-home audio since college. I bought a 100′ stereo cable and ran it from my roommate’s bedroom all the way down to the front room so we could have music playing on both floors of our four-person townhome. I remember price-shopping multi-zone amplifiers when I didn’t have two nickels to rub together. It seemed the height of luxury to be able to listen to the same song no matter where you were in the house.