However, if the objective is best quality music, then keeping it pure can actually limit the artistic flexibility of the musician/engineer/producer.
I would only suggest that what would appear obvious about digital editing and endless effects and plugins.. this can and actually in most cases takes the music away from the musician themselves and puts it into the digital plethora of endless possibilities which can ultimately hinder the music.
Brian Eno once said "it is not about having more options, it is about having more USEFUL options"
The temptation to over produce is VERY REAL.. and in my opinion hinders the process of creating truly great music which is really best when it is actually being performed by the artists.
Dylan didn't need a lot of studio trickery, and if you love more complex music.. bands like YES and early Genesis just simply had great musicians that where also very creative in the studio environment. But sometimes less is more.. and striving for a better take can actually produce a more heartfelt track than using pitch shifters, and quantizing drum tracks, fixing the mix in protools and so forth.
I suggest that the pressure of having to perform on your instrument properly can lead to better recordings or even great ones.
For us that know... most records these days are created in a very dishonest way. Before the digital age.. I think recordings were much more honest.. and that ultimately transmits to the listener whether they consciously know the recording process or not.
Digital effects can't help but sound digital.
Samples sound like samples and plugins sound like plugins.