Magimix 5150 and 5100
I've been researching this today, & it appears that the difference between the two is only in what the Chefs catalog offers with the 5150 -- the citrus press, the juice extractor, & the 4mm slicer. shredder disc. Also, if you order from Chefs, shipping is free -- from Napa Style, looks like they add an additional $25.00 -- maybe because of the weight? I'm about to put my order in to Chefs right now.