I don't know about plastics, or how they look after some use, but I don't find the issues so severe. I must respect people trying to perfect their work, and salesman trying to have nice products to sell, but if it was me, I wouldn't spend more time perfecting it.
It's only aesthetics, and then under the right light and so. My gut feeling is I can't afford things to be so nice. I prefer them to work. I also don't know whether some of the options makes the case stronger or more resistant.
I prefer my unit to look ugly so it is less likely to be considered valuable and stolen. So feel free to use that black case for me if it saves time or money or whatever (but there must be lots of people before me).
In fact the one with more stone-like appearance for me could already be considered final. I can't see what not to like there. Maybe better in black than that grey, but that grey looks very good too.
It's possibly only the look, but it looks as it the stone-like grey can be easier to grab too, hard to tell without touching it.
On the semitransparent black, it's ok with me, but I'd need to see how a full Pyra looks with all its lights shinning with or without ambient light. I might not like it. And the ocean blue I don't like much, but if people like then whatever.
Thanks again for your efforts and good luck.
