Where is the cheapest place online or store to buy authentic mbt shoes?

Dealerships for MBT shoes can be found at the official MBT website. Most likely, they will list a location in your area or close to your area that you can go to. Besides that, one could order online if the desired size is known and there is no need to test the shoe before buying. Sites like Amazon, Zappos and Footware ETC. all carry MBT shoes at reasonable prices.