It took me a long time to realized that good shoes are important and to get good shoes you have to spend the cash.  Several years ago I was having so any issues that I went to a small independent running store.  They watched me walk, listened to my issues and out of all the shoes they stocked, choose the NIke Vomero.  I always thought I was an 8.5 or 9, but they choose a 9.5 for me so I would encourge you to have it fit at a sotre and then check out Amazone.  Since that time I have purchased two more pair on Amazon.  Not necessairly less expensive, although I did get a deal on one was, but I really hate to shop and for that Amazone is so perfect for me because it comes right to your house, no driving, no parking, save time and money.  One pair lasts about 6 -8 months for me with daily wear and gym use six days a week.  I did not like the other color combinations aviallalbe from Nike on the Vomero put the gray and purple is tolerable.