I don't think the Sony in the picture is the Touch, is it?
I agree that he really doesn't seem to have done his research. The Touch has a fair number of advantages, but contrast is not one of them - it is (slightly?) less good than many ebooks (including the other Sonys) because of the extra coating the screen needs to make Touch work, so, if he needs better contrast, he should try a different reader.
How much you can read on a page really depends on your eyesight as well as the image; if your eyesight is really good close up, then you can read quite a lot on one of these. PDFs are a known problem area, but there shouldn't be any difficulty in changing the properties of a PDF (even if you do it by printing it into a PDF virtual printer).