I don't recall this being terribly frequent, but I've seen it.  Actually,
the interior handles broke frequently-- they cracked around the retaining
screw.

We have a 98 Sonata that's had this problem, and I asked about this on
this forum last year.  We've replaced the driver's door inside handle 4
times in 4 years and the passenger side door now needs to be replaced
for the first time.  We always assumed the breakdown of the plastic was
caused by the high interior temperatures resulting from our living in
the hot desert climate of southern AZ (we're near Phoenix), where
interior temps. in the summer are often near 150 degrees even with the
windows left slightly open.  I change the handles myself because it
costs WAY TOO MUCH to have it done by the dealer or a repair shop, and
I view it as a task that is more than a pain in the butt type of job,
but one that I'm willing to do to make it easier to manage financially.
Lee

Yes  I have one now as we speak it is the exterior handle on the rear
passenger side door.  It is a pain in my neck really.  It really cost
you 50+ to have it repaired?  Wow!! Good luck with the rest of them.
Oh yeah mine is a 96 Accent