For the past 15 years, I have used the same cheap combo of soundbar+subwoofer (Sony but anything goes) and it's perfect for everything I throw at it. The sound is equivalent to what I remember on those expensive sets, it's only $250, and I don't spend my whole time in front of the TV listening to high-quality remasters of classical concerts while smoking a cigar.
The high-end brands have failed to recognize that for most people a decent set of cheap speakers is equivalent to a cinema experience. They should have studied that instead of focusing on incomprehensible technical values and numbers. The software industry is guilty of this too.