I think it might sell well. Build systems in a case like https://www.amazon.com/gp/product/B0BLXY7S4Y/ref=ox_sc_saved_image_10?smid=A26YYQ0U8ZSIL1&th=1 I do wish it was wide enough for a SFX PSU & deep enough for a two fan GPU. Couldn’t find a moduler FexATX, well a good name brand. Call them Manjaro Mini Max PCs. Nice & easy to move around. They have mATX ones, but they are 15’ tall & 12’ deep & take ATX PSUs. The riser with the case is PCIe 3.
I love mini-PCs, and ARM (RISC-V??) SBCs even more.
One of the small advantages of mini-PCs, but big to me, is that they can be fan-less. Most of mine also use a metal case as the CPU heat sink.
Adding a GPU seems to be the appeal of this case. But it can’t even fit the modern popular GPUs. The length is too short most, and even the back panel wouldn’t fit the 3U cards.
It you want gaming, stick with ATX. I always get extra room on top of that for all the drives and other PCIe cards I put in.
Neither a Mini PC nor a PC stick are designed for gaming. One might be able to play some older games, I suppose.
By the way, I edited my first reply above to be more clear.
Now there’s an idea. No matter what hardware one has, with enough money and bandwidth, one can play many games via online streaming. There is at least one cloud gaming service still around like GeForce NOW by NVIDIA.
Yes, it is a bummer that 1 is not deep enought for a 2 fan, you could get a good sys in that small case. I found a
ZOTAC GAMING GeForce RTX 4060 8GB Solo DLSS 3 8GB GDDR6 128-bit 17 Gbps PCIE 4.0 Super Compact Gaming Graphics Card, ZT-D40600G-10L & put in mine (living room sys, not this one) , man just a few more mm on width a 4060ti would have fit, ofcourse they were wrong on the CPU cooler, so mybe the GPU size limit was wrong too. I have the CPU from my old sys with the cooler in the case, Noctua NH-L9a-AM4, Premium Low-Profile CPU Cooler for AMD AM4