I have lots of examples of music mastered for boom boxes, and I so wish we had the ability to reach back in time and shake those mastering engineers a little bit. :D
A remaster at least gives us the chance that more modern equipment was envisioned by the mastering engineer.
Honestly it can go either way, but would rather have options though I find most re-masters just boring and not significantly better.
The MoFI remaster of Pink Floyd DSotM though, awful. Eliminated a bunch of effects in the original