So you finally get a chance to produce your first album. You use a great studio with top mixers and you hire musicians you can't really afford, you go through problems with temp vocals drummers and bass players not understanding what the songs are all about, you have scheduling problems with musicians availability, some don't like the food you have in the green room next to the studio, your wife doesn't understand why you mortgaged the house your families future to do this project. Then after the extra loan from the bank and the emergency credit cards, you finished tracking, you cut extra parts you ended up not using (dear god why did I do that), editing, mixing buying extra time at the studio then mastering you invite your closest friends to listen to your dreams in the control room. You are at a moment of complete vulnerability you push the play button on the mixer. Then slowly you notice the slow smiles and even a tear coming from your crusty oldest friend.
This story is common and and is why music is so emotionally moving people give their all for projects like albums and movies. The only way you are ensured that your audience will see what your best work is to see it in the room you mixed it. I can't tell you how many times a director has been distraught about satellite compression or out of spec theater equipment. If you had studio equipment in your home you could see and hear the artists and directors vision.
If you have a playback system at home that is built on personal preferences you have no way of knowing if what you are listening to or watching is even close to the effort the artist or film maker put into the project. If you were serious about sound you would use professional equipment for playback.