Advantage to two racks is if you do not use one much, you can take it off and retain the other. I usually do not keep my low rider racks on a bike when I get home from a tour, put them on for the next tour.[/QUOTE]
That's the idea behind the Nitto Campee rack. The question is, how often you use the front rack when you are not traveling? I settled on the large Surly rack and added a basket to the top shelf. I take the whole thing off when I am not camping.
Marc