I was very disappointed to learn here that the best I can hope for is a cheesy multi-layer acrylic case for what would arguably be a better RPi than the 5 Pi4s I have that are tucked into nice stylish FLIRC aluminium cases (one of them a snazzy Kodi box) and a Pi3 in its Flirc case running Octopi.
The advantages of a base over a hat in this instance in terms of airflow are clear, so I’m sure there would be good takeup for a more professional-looking case if it were available. It might even provide more of an incentive for users to buy the base in preference to the hat!
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Sorry that it’s taking a while - we’ve been using a new to us manufacturing process for these which has involved a lot of iterations and back and forth with the factory. It’s progressing, though (we’re sending them some fresh design files this week) and I’ve been making sure to bring it up in our weekly dev meeting so it gets kept on our radar.