[Kunzite]

So... if by chance anyone here is interested about how the Limited series come into existence (which I find very unlikely), Pentax had some presentations with the occasion of their 100 years anniversary.
They're talking about the design criteria (and one can compare the FA, DA and now D FA series), about the design process - involving study of actual prints, which continues to the D FA 21mm; they're talking about how sales were skeptical and how the first Limited was actually a limited edition, built using a more manual process.
There's a lot of good information in there.

https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/396940-fa-limited-development-story-also-little-da-limited.html

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 Shooting Pentax was a frustrating period for me ( lenses) ....... and it looks like their products are going to be even more expensive ...... and their customers, rarer ....... as most are looking towards ML cameras ...... 

  ...... that's just how it is !!

I would've been very annoyed if I decided to switch to Nikon (I actually considered that in 2011, getting a "bad vibe" which proved to be Hoya selling Pentax to Ricoh) and painstakingly replacing the lenses I own - selling them and buying replacements; that's because by now Nikon would have abandoned me and I'd have to switch back to Pentax, the only remaining DSLR brand.

Yes, Pentax is moving slowly; but in a good direction (for me). The others might be running, but away from what I need.
These are our personal stories, different; there's no "that's just how it is".