Any recording is only a sampling...and a good digital recording is much more faithful to the actual sound than vinyl, because digital media can store so much more information. More samples = better recreation. I'm not saying MP3s are somehow superior; they sacrifice a LOT of quality for small storage space. I'm talking GOOD digital recordings.
A lot of people like vinyl BECAUSE of its flaws, though, and that's just a personal preference. Much like tube vs. solid state processors...solid state equipment can produce much cleaner, more faithful sound - and is more precise to work with, electronically - but many people simply prefer tubes because of the tones created by their reproduction flaws.
"Physics is the only true science. All else is stamp collecting." - J. J. Thompson