Beyond patent issues, TBH I would not have a problem paying for a reMarkable this very day, if I could be 10000% sure that there wasn't some shitty SaaS service involved in using it at any stage.
These days, whenever a new gadget comes up, my first reaction has become "I wonder how they try to screw you into a SaaS later".
These days, whenever a new gadget comes up, my first reaction has become "I wonder how they try to screw you into a SaaS later".