If you believe it's prematurely wearing out, have you contacted CS directly? They don't monitor the forum for Customer Service issues. They just might be able to help you. And if it's bad product they certainly need to hear about it.
The reason they cost that much is the quality has to be there otherwise there would be nothing but complaints about a probe that doesn't work because it's cheap. It also has to be good enough to pass NSF standards, hence the better quality/higher price.
Go into thermoworks and see what the higher quality probes go for, they also get pretty pricy.
FWIW, we can't post knockoff or replacement parts for CS parts in this forum, it's their policy not to do so.