If you are talking about Simms Gore-tex waders, in my opinion they are the best invention since graphite rods. I don't think you'll find much, if any price variation from dealer to dealer, as Simms is pretty limited in their distribution. I bought mine at the Gorge Fly Shop in Hood River, and Travis (the owner) is a great guy and will ship them to you free, plus no sales tax!!!
(541)386-6977 they also have a web site.