I've been looking for a copy of Tom Rowe's book on the Remington Hepburn no.3. I went to my favourite site:- (You need to Login or Register to view media files and links) and searched around and I found several. I visited the various sellers websites and the difference in price and postage was phenomenal. 

Is I understand it, the book usually sells for $125.00. I found several copies, all new at prices as low as $96.00. Factoring in postage to my address in the UK was the thing that made the big difference. The prices quoted varied from $19.95 to $76.00. Needless to say, I chose the best deal and ordered the book. 

It certainly pays to have a good look around before buying. As the Romans said, "Caveat Emptor". It worked for me. 

Harry