JackRabbit offers the On Men's Cloud Running Shoes in Green/Grey or the On Women's Cloud Running Shoes in Denim for $129.95. Coupon code "PLJ7W92ZQPC79" cuts that to $64.97. With free shipping, that's the lowest price we could find by $19. They're available in men's sizes 8.5 to 13 and women's sizes 5.5 to 11.
There are many ways to get cheap and even free services and goods after reaching a certain age.