The Banana Pi BPI-M7 single board computer is equipped with up to 32GB RAM and 128GB eMMC flash, and features an M.2 2280 socket for one NVMe SSD, three display interfaces (HDMI, USB-C, MIPI DSI), two camera connectors, dual 2.5GbE, WiFi 6 and Bluetooth 5.2, a few USB ports, and a 40-pin GPIO header for expansion.
100$ isn’t cheaper than 55$. That’s 200% more than the pi. If someone is looking for a pi because of the price, a 100$ computer isn’t an option.
You’re ignoring the fact that you need accessories that will up your cost to the 100$ range. Either way, fine, there are now 4 and 5th gen HP Mini PCs selling for 50-70$. Want even cheaper then look for i3 CPU + 4 GB of RAM, you’ll find 40$ complete machines that run faster and are way better than a Pi. All of those options come with power adapters and all the things required to get it going.