Retro gaming is a massively popular Raspberry Pi application, and while loading your favourite old video games onto an SD card is pretty straightforward, building the physical shell of a gaming system can be daunting for those of us without 3D printers or design skills of any kind. PiBoy Mini bridges that gap by providing partially-assembled devices to their customers. The rest is BYORP: bring your own Raspberry Pi.
The final cost of this device is a bit of a hard ask in a world where we have a lot of Android and Linux handhelds out there. It seems like this would only be a good idea for users who just really want a raspberry pi as their emulation device for the familiarity.
The main advantage is that this is upgradable. So when they come out with a new Pi, you don’t need to buy the whole kit, just swap out the Pi. The old Pi can be relegated to home automation tasks or resold.