Right now Porkbun has the cheapest first year at $9.27, and Porkbun the cheapest renewal at $309.47. Over three years the lowest total at one registrar is $628.21 at Porkbun.
Why does .feedback cost more after the first year?
Many registrars sell the first year below cost and recover it at renewal: at Porkbun, .feedback renews at $309.47 after a $9.27 first year. Compare the renewal and 3-year columns before you buy.