I have my own vintage hardback copy, which I have to handle gingerly, because opening the book fully will crack the glue in the spine and pages will come loose (I've limited it to only three pages at this point), so a copy that can be leafed through at leasure would be welcome.
However, there's a bit of Buyer Beware; the offered books are created from scans of the original, and while the resolution is ok, the colours apparently are not. I was told that the quality of the scans is thus that the pages are way too dark, playing havoc with the clarity of the pictures. The same goes for the texts though; the letters are not as crisp as in the original, which might influence readability.
So while there obviously is a market for this; Rogue Trader has been gaining in popularity over the past years with the entire Oldhammer nostalgia wave, I think possible buyers should be aware of this. It's not going to be a reprint of the original eighties materials but rahter a copy. Mind: the above is not based on my own experience, but rather on reviews, comments and pictures I found on the subject.
I contemplated getting one myself, but I think I'd rather buy another (softback) original, take out all of the individual pages and put them in a binder instead.
But that's just me; it is great that GW offers the possibility!