I couldn't care less to be honest. I use 320 mp3s and I'm more than happy with it, once you get past a certain level of quality the law of diminishing returns sets in.
Back in the day when I was a rock god
I used to invest thousands in all the top of the range guitars, amps and boutique pedals.
I could hear and feel the difference all day long. Even now more often than not I can still pick out the correct guitar on any given track but I once took a girlfriend who had pitch perfect hearing to a shop to try out a few pedals.
She couldn't tell the difference between a £400 boutique overdrive and a cheap ass Boss pedal - if she couldn't tell the difference in sound and quality standing 5 feet away in a quiet show room, who's going to be able to tell the difference when they're drunk in a loud venue full of people sapping up the soundwaves.
Is there a difference, yes, does it MAKE a difference in the grand scheme of things? IMO no