One popular reason for loyalty to a particular brand of running shoe is that you know that their running shoe from your favor brand will not only fit your foot perform like it is designed to. You have a particular need for a running shoe and by ordering your favor style of running shoe from your favor brand can be insured of getting a proper fit.
Running shoe fit
If people like how a certain shoe feels in the fit of it then they continue to buy the same style hand or brand of running shoe. If you know that a Nike shoe has always been comfortable in fit your foot properly then you may be more apt to continue buying night you running shoes. If you were a large size running shoe like I do, then you must buy your running shoes online. I do not have the luxury of trying on shoes before I purchased them. I know from years of wearing Nikes that a size 15 will always fit my foot regardless of the style.
In the past I have been leery of ordering running shoes of any other brand other than Nike. I can now try ordering other Brands of running shoes and feel competent that I will get a shoe that it's me. Zappos has for a return shipping on their shoes. If I order say a pair of Asic running shoes and they fit too small or too large for my feet, I can return them to Zappos free of charge and get the proper sizing I need mailed back out at no cost to me.
Because of the service that Zappos offers such as free shipping and for a return shipping I now have the luxury of purchasing other Brands of running shoes. Although I will begin slowly look at other Brands, I am still very loyal to the Nike brand. I am not loyal to the Nike brand because of their advertising and marketing, or because it is considered cool; I am loyal to Nike because the shoes are always comfortable in fit my feet away a running shoe should regardless of what style of running shoe I purchase.
If you have traditionally purchased only one brand of running shoe them feel free to experiment in try on other Brands of running shoes. If you must buy them online without being able to try them on first then make sure you order them from Zappos so if the shoe does not fit you can return it for the proper size for free. If you order a pair of shoes from Zappos and try them on a home the same as you want in a store and if they do not feel comfortable, then you simply send them back to Zappos free of charge and they will send you back out either a new size or a new style of shoe.