I need this in beige
I want this in a plastic case instead of aluminum.
Side note: Any real reason why most custom cases are aluminum? Is it something with ease of manufacturing or do most people looking at customs want the "premium" feel that aluminum brings? A really nice quality plastic case could be great, especially if it was offered in colors and finishes that aren't possible with metal.
The very simple reason is economics. Each set of injection mould dies cost a few tens of thousands of dollars to make, when you factor in the cost of design and test, it can easily get into the 6 figure range. Injection moulding die design is a whole engineering discipline in itself, and it ain't easy or cheap to design dies that will function properly as well as produce parts that fit together post-mould (taking into account shrinkage, distortion, sprues removal and such). Speaking from experience, even parts you spend a few hundred thousand quids designing/verifying and producing aren't necessarily perfect (and believe me, fixing them cost a pretty penny, even at moderate production numbers of around 7-8000 units per annum).
Simply put, unless you're gonna pump these things out by the absolute ****load (tens of thousands to hundreds of thousands units per annum), it just isn't economically feasible to do, especially considering the size of this niche. This is also the same reason that once you produce a working case design, it's sometimes cheaper to stick with it across product lines and design future products based on those instead of making new designs. Just look at Cherry and their G80 line of cases which is common across Cherry MX and MY variants.