Back in the day, vendors like Lenovo used to make the DC port easily swappable (separate daughterboard with modular cable to motherboard) because it was perhaps the most common simple wear part to fail. As a warranty tech I was doing this multiple times a day and it could be done in under ten minutes fairly easily. While the repair was of course free for warranty and service plan customers it was very inexpensive (relatively) for non-warranty customers, less than $50 if I recall correctly and that was due to a labor minimum, the part was only a few dollars as billed. Unfortunately even Lenovo has dropped this practice in the course of reducing case sizes and later switching to USB-C.

Of course this was also back when we made such a deal of turnaround time we used to call a taxi courier to deliver warranty units back to corporate customers with the higher end service plans. I'm not sure that you can get this kind of service any more with any vendor without using some small local VAR. I remember vehemently apologizing to electrical utility linemen that we didn't have a part in stock and so they wouldn't get their T50 back until we got the replacement in the next morning.

Perhaps part of this is compensated for by improved longevity in newer cables, but cycle life is rarely the problem (except perhaps on the iffier miniUSB), instead it's dropped/kicked/dragged devices. In general I am pretty frustrated with the decrease in serviceability of devices but this one is especially irritating, since like most people I've had a lot of devices where the charging port failed before everything else. USB-C feels like it represents a step back in a lot of ways because it's basically put the kibosh on magnetic charging interfaces (even more so than patents).