Run 20 minute 5ks and 43 minute 10ks during triathlons. Usually place in my age group in Triathalons. Run in vaporflys and enjoy competing in races at 58. From late teens until early 30s ran mid 14 5ks and low 30 minute 10ks. Always wore the best shoes for me and price was never a concern. If you push yourself to run fast at any age why would you not get the best equipment to help your run as fast as possible?