Amazon is about the same on that than where he was looking. $467.89 vs the $460 he found. That one looks like it includes freight but that changes as Amazon has various vendors on the same item. Some will also include sales tax. I find Amazon has the best price about 20% of the time on what I buy.
Example, I just bought 4 sheet goods racks from three different manufacturers: Jamco, Fairbanks, Little Giant. Amazon was the highest of the 4 vendors. I've bought a bunch of Durham hardware storage racks and ended up buying the rack from Zoro and the bins from Amazon.