Amazon Software Development Engineer interview questions

Recruiter called me. Told me that there might not be a job available in my preferred location, but that they could tell me if I made the interview cut. To make the interview cut, I would need to devote nearly 8 hours (1 hour practice online exam, 2.5 hours online exam, up to a 1 hour follow up, followed by a 4 hour in person interview). I didn't have the time to devote an entire work day on a job that might not even exist and it didn't seem fair to ask me to do so.