I do, for one. I spent every spare moment during high school and my first year of college writing these games. That's thousands of hours. That was my passion. Furthermore, it was the prelude to my eventual career as a professional software engineer.
Most emulators are freeware.
The emulator sites are not affiliated with Prowler Productions. Some sites will provide the system ROM for download, but I'm not sure of the legalities involved in that. Definitely you can. The emulators will allow you to assign real drives and .DSK files as if they were the same. Hunt around and you may find one.