Host the photos somewhere else like people have been doing if it's an issue, or upload them here at PU for free. Take your pick.

You can offer it to the under bidder you know.

Maybe, but one can get two K-1's for the price of one of those. Would I have purchased a K-1 at that price? Doubt it very much. Better to get a dedicated video cam for 4K (if one really wants one ) and have my fab K-1.
Given Pentax's market share, how many D850 equivalents would Pentax sell? Doubt it would be worth tooling up and spell disaster for the brand.
Nikon are doing so well aren't they or perhaps not. Can they really afford it either?
It's all very well for people saying Pentax should have this and Pentax should have that but there isn't a bottomless pit of funding or a magic money tree at Ricoh HQ.

On Sunday I was using the 16-85 to take some of the narrow yards in Whitby. I think here the wide angle exaggerates the cramped feeling with the strong perspective at 16mm. What the images do need is to have a focal point, here it is the street lamp rather than the more usual vanishing point.
Ellerby Lane:



Making the most of the Heritage weekend the day previous I was at Beningbrough Hall near York and used that same lens to capture a butterfly (amongst other things.)
Small White Butterfly:



And the day before that, at Sewerby Hall Zoo in Bridlington, the same lens to photograph birds in an aviary.
Diamond Dove:



David's photos taken with the 55-300 could also have been taken with a 16-85 as their focal lengths were 55mm and 70mm. If need be (indeed I did) crop some of the photos taken over the weekend, but I feel having the wideness available is more useful than having just a long lens and not getting what I wanted. At the end of the day, it depends on what one anticipates taking on that particular outing!
At least I made the most of the opportunity provided by the free entrances over the weekend!

This is the page of 4K DSLR's, only they're all mirrorless so not DSLRs!
http://epfilms.tv/top-4k-capable-dslr-cameras/
Talk about misinformation!

I used to do 'proper' Super 8 movies, fully edited with sound and shown in public through the local cine club. Quite enjoyable to do really. With the advent of video it became a nightmare to edit anything and at the same time the cost of film rocketed so I sadly lost interest. I can't believe many casual home videographers could afford the kit to satisfactorily edit 4K yet so why even consider incorporating it in a basic DSLR?
4K would work better with a mirrorless. Actually are there any DSLRs which do 4K, Pentax or otherwise and if so, what do they cost? A Google search for DSLR cameras with 4K produced for me a page of mirrorless cameras, non in fact were DSLRs!
So which camera would a Pentax DSLR have to compete against should it provide 4K video? (I don't mean mirrorless offerings!) Or to put it another way, which 4K cameras also provide the facility of being a full single lens reflex camera too?

I didn't buy into Pentax to get video at all.. my SLRs didn't do Standard/Super 8 let alone 16mm and I don't expect today's ones to bother with the current equivalent. Mind having incorporated video they've let themselves open for people to criticize their offering. Certainly don't want the cameras compromising to provide 4K which I'll never use.

Seems Jessops don't know what's good for them!

You seem to have all bases covered other than the extremes such as the Sigma 8-16mm or 10-20mm and something over 300. So I'd have thought your collection would cover most subjects you're likely to come up against.
For APS-C my current favourite is the 16-85 which covers most things I want and focuses close enough for bees and butterflies if I haven't got a dedicated macro lens with me. I also have a 17-70 but never use it given it offers slightly less than the 16-85.
Be curious to find out what you've (apparently) being doing wrong! I can imagine it might be the 18-250/270 he recommends which aren't bad lenses given the range covered.
In any event, it's a very personal thing and depends on what one anticipates finding to take. Some might find the 35mm plastic fantastic does all they need and stitching shots if it isn't wide enough.

FWIW... a word of warning. From Amazon, 8 Eneloops would cost £13.99 inc postage, the Amazon-Basics branded ones £17.98. So be warned if ordering! I know which I'd prefer and they're cheaper too!