In the US, never. At $10M USD per btc, each sat is worth 10 cents in today's value. The home prices when or if BTC hits 10M is likely a decade or more.

Let's say the media  house then costs probably $750k in a decade. 


You would need 7.5million sats worth of zaps.  

99% of people will never get 7.5M sats from zaps today, nevermind when sats are worth .10 each.

Nobody is sending 50, 100, 5k sats when they are worth 1 to 10 cents per sat.

Sorry to burst your bubble.

A car? Maybe, doubtful though.