I go back and forth on that, myself. Yep, I also consider that one mastering to be "final" and detrimental to the album, because that's what people bought back then (though when I personally want to hear the album, of course I play the new masters or the bootleg masters before that - I care about my ears, okay?).
And I don't consider bonus tracks to be a part of the album. Usually.
But especially these live albums with bonus tracks that expand the setlist and give you the more complete experience, I'm all for that. Particularly notable in that regard would be the Allmen at the
Fillmore (yep, I even have the 6 CD complete version) and
The Name of This Band Is Talking Heads, which was expanded into an even greater album, although it's not from a single performence.
But I admit sometimes I don't even respect my own rules - e.g. with
Eat a Peach when I think about that album, I mainly think about that deluxe edition with second CD taken from the Fillmore gigs (now made a bit redundant with the aforementioned complete Fillmore collection), especially because the original album already contains some of the live Fillmore tracks. So I kinda tend to count it as the whole package, with more of the live stuff still with Duane (the original album already was kind of messy, because it was new studio tracks without Duane, old studio stuff still with him and older "outtake" live stuff that couldn't fit the then version of
Fillmore, so it all kind of fits).
On the other hand, I don't consider the deluxe edition of
Brothers and Sisters to be the "proper" one, despite it having a complete concert by the new lineup - I like the stuff, but it's not part of the album for me.
As for
Death Magnetic in particular, I like it, I liked it even with the terrible mastering (before the bootlegs were made available), but I won't hold it against anyone voting against it because the original version was released and sold in an almost unlistenable version.
But it feels kinda strained in general and it's not among their best stuff (and I'm not the "old guard", I
love ReLoad). In fact, I think I agree with
Beau here
While both are far from my favorite album by either artist, Surfing... is a stronger record than Death Magnetic. While it's surely an unpopular opinion, I actually prefer most of the songs from Beyond Magnetic to most from the album proper.
Both artists have better albums (though I really love Crushing Day), but a C-tier Satriani album is better than a C-tier Metallica one. And yes, I like
Beyond Magnetic much more.