In a world where N100 exists, only Zero and Nano Pis are interesting. The main/x00 lines are not good deals for desktop or self-hosting use. Not sure what the point the monitor makes.
Can you spec a N100 system with 8GB of RAM and at least 32 GB of (slow) SSD and land around the £100 / $120 price point of a Raspberry Pi 500 with 27W power adapter? Not to mention the GPIO header.
For people buying these as a computer the power difference isn't something that even enters their mind. How many average people do you see debating one tv over another because it uses 5w more power?