A lot of people are saying The Shoe is only good for 1 race, The Top Stars can EASILY afford that especially if they only race 2-3 times a year, but an unsponsored runner who only works part time because of their heavy training load (Very few have the Energy to work full time and run 120-150 Miles A Week) or poorer runners in General will have a hard time buying $500 shoes will be at a disadvantage Assefa having run 2:15 is Likely Sponsored and Paid ZERO for the shoes and she may have even been paid to wear that Shoe, But someone Unsponsored and struggling Financially would be at a Disadvantage, Most People want a Level playing field, But this would favor Sponsored and or rich Runners over Unsponsored and or poor runners