https://anbernic.com/products/anbernic-new-rg351v-retro-game...

Seems to be $120 for equivalent form-factor, but still missing a large amount of what the Pocket supports (such as physical cartridges, link cable, and TV output), and with a worse display and a smaller battery. And it's not like the Pocket is that much more expensive at $220.

The FPGAs are neat, and certainly help with power efficiency here, but they're not the primary draw of this system. It's the fact that 100 pixels make each gameboy pixel and serious work was done to use those 100 pixels to look like a convincing recreation of the original screen. That's easily $100 unique.