Joycons. I actually enjoy using them but the fact that their failure rate is basically guaranteed makes them little more than paper weights. I have 4 sets all with drift. I have a friend who's really into Nintendo and he has a huge collection of joycons because they keep developing drift. At $100 a pop in Canada, I know my friend has spent over $1000 on these things. Myself, I would never buy another pair of joycons from Nintendo.

My experience with joycons has actually made me much more discerning when it comes to buying new controllers, for example why would I buy the xbox elite controller when everyone reports they develop drift? Before joycons I probably would have just bought the xbox elite controller and ended up with a disappointing product.