I also have a pair of Shure IEMs, some 15-16 years old. They still work great, but I've been through at least 2 cables with them, plus an additional 3rd party Lightning cable. I've then switched to BT and couldn't be happier.

Yeah, paying a tad bit more for earphones with replaceable cables pays dividends. A cable doesn't cost much, and you also get much better sound quality (which has to count, right? Since BT sound quality often comes as an argument).

I also have a pair of these and they sound really good. Then I received a pair of the Shure Aonic 4s for Christmas one year and those sound amazing. As an added bonus, the passive noise isolation with proper fitting eartips beats any noise cancellation I've ever seen.