If you are worried about getting stuck with KFX from Amazon and ending up with DRMed eBooks, buy from Kobo and get ePub which can be DRM free and ePub does convert well to KF8 for Kindles.
But if you own a Kindle (hardware), then you can download direct from Amazon and get KF8 with no DRM. It's KindlFfor PC/MAC that can give you KFX depending on your version and setup.
But if you own a Kindle (hardware), then you can download direct from Amazon and get KF8 with no DRM. It's KindlFfor PC/MAC that can give you KFX depending on your version and setup.