That is a totally fair question and one that I simply overlooked. Technically you can buy Gulikit through Amazon. I personally appreciate that the cost of it doesn’t go up over like a regular controller. Scuf did me dirty, I had a scuf for all of two months before the lb button fell apart and they refused to repair it. That thing cost me $185. This controller cost me $70.90 and has lasted me about two years. Here is a link to the Gulikit store on Amazon. I do recommend making sure it is from that store. I don’t know anything about it, but there is a AKNES store which sells gulikt controllers. amazon.com/…/BCC8C06B-7BF5-4D6C-A9A0-6290B8091F02…
On an unrelated note, if you have joy cons with stick drift (who doesn’t have these) then Gulikit also sells just the stick modules so you can fix it for good.