One of the things that come to my mind that many pro studios have that most home studios don't have is a selection of microphones. It is very easy to get thirty to fifty thousand dollars invested in microphones alone. Some studios have a lot more than that tied up in microphones.

A new Neumann U87, which is a common vocal microphone, cost over $3000 dollars. Old vintage
Neumann microphones are so sought after the price is insane.

Rooms designed for sound, isolation booths, B3 organs and other instruments , engineers with years of experience are common conditions of good studios world wide.

There are limits on everything. Money is a real issue. Home studios address part of the money issue. They provide a condition that provides a way for many people to produce music who otherwise could never afford it. There is a place for both.

I can assure you that professional recording studios are not going away anytime soon.

Billy

Billy