The Nike Mercurial Superfly 6 Elite CR7 Special Edition retails for $300 USD. Unfortunately they sold out within a few minutes of release so eBay would be your only option if you really want a pair.
Nike produced this boot to celebrate Cristiano Ronaldo’s first season and league title with Juventus.
Ronaldo scored his 600th career goal wearing these limited edition releases which were limited to 2019 Numbered pairs worldwide.