I think too...
On the 1975 I see a 800 pixel width. That's usable, but difficult to read the print without magnification. It's still be nice to see larger scans, but they areusable as is.
On the 1977 English and French catalogs, the width is in the 660 pixel range. Those are really too small for comfort. Yes I can use handicap access features to blow up the graphics to look at them in depth, but I would still prefer larger scans.
On the Heuer Special 1982 catalog the width of the scans are 1200 pixels, now this is more like it! These are fine. If the other catalogs had click through's likethis one, it'd be GREAT!
Just for point of reference... When I do scans, I try to have click thru's to higher resolution scans. On some things, I really go overboard [like scans of articles on the AC 428 Frua]... Check out the link below. And there are two HIGHER resolutions than the picture posted below!