Pretty much anything made now that consists of decent quality materials be they wood, cotton, wool etc are starting to cost eye watering sums. This is one reason for the popularity of things like Vinted.
I wouldn’t be surprised if Indonesian made instruments made in the last 20 years gain in popularity a little as IMO the low inflation era is pretty much done. Even the cheap production countries like Indonesia, Mexico, China, Vietnam etc are getting more expensive to produce from as commodities and wages increase.
Either quality will decline or prices will increase. There are a lot of cheap second hand Indonesian made instruments out there that are very cheap but very good.