This is a touchy subject. Everybody has an opinion. In fact, I have so many different opinions on this, I think I must have regenerated as many times as the Doctor since 1963, because I have different voices in my head all arguing with each other about what's right.
Thing is when it comes to books like the DC Archives, I would really like this kind of restoration. And I would hate it if the book had scans. And if it had scans, I would like it more if it had cleaned up scans. And I certainly prefer this kind of restoration to looking at blurred fiche.
BUT. When it comes to looking at pages on the computer--and especially for this site--I want to see the comic how it actually looked. It spoils it for me if the images are cleaned up too much. Some cleaning up of scans is expected and even welcome. But it's touchy. I want to see the colour dots that were on the original pages--I don't want the colour to be replaced. Fixing wear and tear and stains on the original comic that's being scanned is probably a good thing. I do that sometimes when a spot on a scan really starts to bug me. But I would prefer it if scanners left the pages alone as much as possible.
Why there's this divide in my opinions, I'm not sure. It might just be what I've gotten used to. The thing is scans printed in books don't look right--they lose some of the quality. Yet on a computer screen, scans look right.
Ideally I want both. I want publishers to do a proper restoration for the printed page--but I would also like to see scans of the original comics. It would be great if reprint books included a disc of scans--or else a code inside their books that allows you to download a digital file containing the scans.