Review: The Sonos Beam makes your TV smarter and sound better better
https://thenextweb.com/reviews/2018/06/27/review-the-sonos-beam-makes-your-tv-smarter-and-sound-better-better/
People buy soundbars for convenience.
There are almost always ‘better’ options for the price. For sound quality, you could buy a pair of bookshelf speakers. For surround sound, there are cheap 3.1 or 5.1 systems. But soundbars let you do it all – or almost all from one convenient unit.