Not cheap, but its a good solid case
I dont mind paying for quality and i think this case is nice. Its a great heatsink and you know it when the entire case is hot. Fitting the pi inside with 2 full size NVMe cards was actually very easy. I bought the OLED display for it aswell. As for the case being a heatsink, i stuck a slab of thermal pad to match the size of a Pentium 2 CPU cooler and that works great when running AI models at full beans continuously. Doesn't get hotter than 65c midday peek summer. Not sure how useful the display is since its so small and too far away from seating position. Its my daily driver computer. (The cooler on top is not required for normal use) But i squeeze the beans out this one and that cooler interfaces well to the flat case design.
Daniel Craig