They are totally worth it. The cost is almost secondary to me, it's an excellent typing experience and it reduces reparative stress injury.
I have a rosewill that is made from cherry brown switches and apparently the minimum electronics to make it work reliably unlike the low end one OP wound up with. Probably cost me $80 six years ago but it works the same as it was new, and I expect to get a decade out of it no problem.
I'll never go back to membrane keyboards.