Or, let's be honest, there's a really good chance that most any given piece of originally protected software now exists in a cracked version on one of the various Apple II software archives. (That *can* be written out to a new disk via ADTPro or whatnot.) There might be some stuff left out there that's resisted cracking but I imagine it's a short list of mostly rare and obscure software.
For day-to-day use I'd definitely recommend you work out a workflow for generating Apple II disks (which should be easy with a IIc, as it has an ADTPro-compatible serial port built in) and run generated copies for most of what you do. These days the reason generally sited for buying originals is in order to collect the manuals, boxes, etc, not the floppies themselves.