Joy Con repair at Nintendo or Gamestop?

My left Joycon is broken, guarantee has expired. Where would you repair the JoyCon? At Gamestop there's a fixed price of 29 euro, at Nintendo there's a cost estimate.

Well, at Gamestop you will probably have it back out of the refurbishment faster. But I would simply compare testimonials online.

Doesn't matter as long as he's back to the ACNH release, it doesn't matter how long it takes

What exactly is broken on your Joy Con? If it is only the analog stick or something similar, you can exchange it yourself for about 5-10 euro (set with analog stick and screwdriver), takes about 30min.

You can get a single Joy Con (Original) for around 25-35 euro on eBay, imitation (both) for around 35 euro with shipping.

It is completely broken, no reaction.