Cars analogies are my fav, so: Imagine you have old and beat up minivan - probably ok for basic transporter in a pinch, right? All it needs is to fill it up with gas and oil. But It probably going to run the Nürburgring ring in about one year or so
Now, Nissan GTR could do latter a bit better, dontcha think so? But guess what - GTR requires whole bunch of costly maintenances, which beat up van doesn't.
Or in other words: Do you want to listen to your neighbor singing in the shower (aka your typical ALL-IN-ONE system) or actually try get sound like you're at the concert (Properly set up component system with good speakers, like MA you'd mentioned) - The latter one requires "tickets", "time to get to venue" and most likely "parking fees"