Z-coil shoes

I purchased my Z-coil shoes over 3 years ago and cannot work or walk long distance without them. They were worth every penny. I had to replace the heels after 1 year,but wore them every day walking on our trails here in CANYON LAKE TEXAS. Iam a Barber and stand all day. If I didn't have these shoes, I would still be alternating 12 pairs of Nike tennis shoes. Which one do you think is more expensive?