The Mac Pro case is the best built computer case I've ever seen. I've dealt with a ton of cases and nothing touches it.
In fact look what the head of corsair case design and cooling said about the Mac Pro chassis :
So the equivalent chassis on the PC side would be well over $500 if any case manufacturer ever attempted to match the build quality of the Mac Pro case.
In fact look what the head of corsair case design and cooling said about the Mac Pro chassis :
Reproducing that case is tremendously expensive. Tremendously.
It would cost hundreds to manufacture, not to count the markup and sales. Plus it would cost hundreds of thousands (possibly over $1M) in tooling before you even built the first one. The manufacturing process on Apple stuff is crazy complex and impressive.
Even if we could reproduce the thing at 100% quality, the cost would be well north of $500, so the number of people buying it would be so tiny as to make it pretty much pointless.
Even the 800D, which is "only" $279, is considered a really expensive case and doesn't sell in quantities anywhere near the numbers you'd see from, say, a $99 "Gaming" case from a popular brand like Antec or Cooler Master.
Even if everybody in the world who wanted to spend more than $200 on a computer case bought it, you'd still have a tiny market.
So the equivalent chassis on the PC side would be well over $500 if any case manufacturer ever attempted to match the build quality of the Mac Pro case.