Not anymore. They became reasonable again and both the search and any selected location description has a "save for offline use" button at the bottom.

But you can't search the resulting map or get directions. I have an Android phone, and the last good Maps for it was version 6. I do two things: (1) use copilot GPS with the whole U.S. and Canada (takes 1.8 GB); (2) keep my old Galaxy Nexus with Android 4.2 which cannot be upgraded and has Maps 6.