@matlag My printers are in the basement. During the winter, it’s dry enough. During the summer, it measures at >80% humidity. I’ve got a dehumidifier but can only get it down to around 60%.

In this situation PETG can only sit out for maybe 3 days before it’s noticeably wet.

I’ve still never had a moisture problem with PLA. It tends to simply be an age thing. PLA gets brittle and snaps when under constant pressure, say where it loads into an extruder or AMS.