I'm still using my Drop CTRL keyboard from 2018. I haven't bought another keyboard since then because it's a good keyboard.
Going through my order history, everything I've bought from their early days are still in use or usable. Keycaps. Mics. Pocket knives. A leather belt. Titanium reusable straws. A couple of headphones and DAC/amps. Ultralight camping/hiking gear.
There hasn't been any reason I needed more of those things I already had, so unless Drop continuously expanded its customer base or product offerings, there wasn't a strong case for repeat business. Then the quality and uniqueness of their offerings dropped and I had even less reason to buy from them.
I don't know what the solution is for survival for retailers and manufacturers offering long lasting products, but I really hope someone figures it out because I really don't like how the world is racing towards disposable low quality junk. But disposable products leads to repeat business.