A legit ergonomic keyboard is also easily 10-15x the cost of a no-name USB keyboard that "works just as well". A MacBook Pro is easily 2x the cost of something that has the same specs on paper. A pro-grade DSLR is 4-5x the cost of a consumer-grade DSLR but in principle work the same.
I've gone from wearing random cheap jeans to wearing $150-200 fitted jeans, and the difference is immense. It's comfortable, almost scary comfortable, the fabric are very noticeably nicer, the fit feels great, and people around you think so too.
That's not worth 2x the cost?