zombieparadise

When I think of mixing, I create a scene in my mind that the producer puts all songs inside a blender, mixes them up and the CD pops out of it

jk

95% of the time it doesn't matter to me, except if it's something that comes out flat (like a lot of Starwave bands) or if it's so sharp it actually hurts to listen to (Virge's CD version of "Vanish" has this issue, but the PV version is fine).

Mixing definitely makes a huge impact on the final product. A poor mix job can totally lose parts of songs and distort the way it's meant to be heard, a good mix job can change an entire record.

Not sure of any VK examples, but good examples in Western stuff are From First To Last's "Dear Diary, My Teen Angst Has a Body Count" which has two mixes that were released, the latter of which was done because the original was so poor (and the difference is really noticeable). The same can be said about the remixed/remastered version of Dance Gavin Dance's "Acceptance Speech," which straight up makes an "okay" album into a great one. 

Not to say I don't understand your viewpoint - I think a lot of people miss the effect this process has on record-making - but when you can audibly hear the difference in the same songs, it really helps understand the impact!