DARPA,
when I started scanning in 2001, I tried out almost all corrections you described. But I hardly was pleased with the results because the scanner added also to the color faults. I remember working 10 minutes or more on each scan on color corrections alone, not to speak of other revisions that had to be done (such as removing spots and blemishes or stitching images). Unnecessary to say that the scan did not look better after the color correction, it just looked different.
Today, and three scanners later, I hardly do any color corrections on the scans, with the exception of "Automatic Saturation Enhancement" in Paint Shop Pro 7. I use the "neutral" positions for bias and strength which add or reduce saturation depending on the saturation level in the scan. If pictures in a magazine have a color fault or were intentionally given a "special" look, I leave the colors as they are. A reader of this magazine can't do anything against it either - he won't use a color filter or tinted glasses
Just my 2 cents...