I've always enjoying studying the original art for comic book pages, because it's fun to look at the washes, white-out marks, pen lines, blue pencil lines, erased pencil, and brush lines. You can learn a lot from them.
IDW's Artist's Editions (I've not seen a copy in person) print scans of original comic art pages, and judging from this video, they seem to go a long way in getting the look of original comic art pages. Here's the video for John Romita's Amazing Spider-Man Artist's Edition (above).
IDW proudly presents John Romita's The Amazing Spider-Man: Artist's Edition, collecting six complete stories by the great John Romita, arguably the definitive Spider-Man artist. Each page is scanned from the original art, same size as drawn, and in full color (in insure the best possible reproduction). This Artist's Edition measures 12 x 17 inches and each book is shipped in a custom cardboard box for maximum protection.
While appearing to be in black and white, each page was scanned in color to mimic as closely as possible the experience of viewing the actual original art—for instance, corrections, blue pencils, paste-overs, all the little nuances that make original art unique. Each page is printed the same size as drawn, and the paper selected is as close as possible to the original art board.
I just found out that there are Wally Wood, Dave Stevens, Walter Simonson Artist's Editions. They are sold out, of course. You can buy copies on Amazon for hundreds of dollars. If you want the Romita one, I suggest you get hopping.