With all due respect SIRT, as you are a talented modeler, why are you even posting anything here. Obviously with all your postings, this sort of product is not your area of interest. So you really offer nothing positive. You like what you like... fine. And we like what we like. And besides, the traditional products are what make the scale products even possible, otherwise prices on them would even be a lot higher than they are now.
It's the same thing when people make posts about problems with new high end scale products (of which there are many, on a daily basis), and someone chimes in to stick with postwar. That kind of comment offers nothing towards a solution to someone's problem.
Like it or not, different strokes for different folks. Obviously there are more postings here on this forum about scale products. Some of that is undoubtedly due to not being able to get answers from Lionel or MTH (and with MTH that's understandable as it's a one-person company). And some of that is also due to warranty issues and the recent changes in warranty policies and repairs. We traditional "toy" train guys are still out there in force, but maybe we just don't have as much to say. Or have the same amount of issues with our trains not working. Besides, the slogan of the Model Railroader magazine was "Model Railroading is Fun." Well, I have fun - as I suspect many of we traditional guys do - and therefore I am a model railroader.
Furthermore, you have posted some misinformation. Rugged Rails cars were not die-cast and were created to meet the sales threat from Industrial Rail, actually using Industrial Rail models for their pre-production paint mockups.
Yes, the Atlas IR cars were indeed nice and paint schemes had a higher degree of accuracy as far as paint schemes. The original IR black painted Norfolk Southern box car immediately comes to mind as something that wasn't so accurate. When Jim Weaver was heading Atlas 0, he obviously had a more diverse vision of expanding their 0 gauge line into the traditional market. Even though their Atlantic model steam engine was kind of a goof proportionally, though well made and a good runner.
Three things worked against the Atlas IR line, of which the supposed abundance of Railking was not one of them. One of the real reasons was the $10-15 blowouts of the previous UMD made IR products by HobbyCo, who bought out the remaining UMD inventory.
The second reason was when Atlas 0 acquired the UMD Industrial Rail tooling, like any other company, they raised the list prices - which were totally reasonable. But there was quite an outcry - here on this forum too - over this. People were unfairly comparing (though I suppose understandably) the new Atlas IR list prices to the recent deep blowout prices. And now you know why all the scale products you like are built to order, to minimize the chances of blowouts, which undercut regular retail pricing.
The third reason, which affected every manufacturer, was when Sanda Kan dropped some 60 companies from their production, leaving them all scrambling to find new and qualified vendors to manufacture their products. Paul Graf of Atlas 0, said that in this process of moving, much of their tooling was damaged and required extensive and expensive refurbishing. Though he never specified, one can safely assume the Industrial Rail tooling was also damaged and was going to need expensive repairs. That and with the passing of Jim Weaver (the vision of Atlas 0 changed), they likely decided it wasn't in their plans or worth the expense of refurbishing the IR tooling.
Now back to Railking. Mike Wolf has always said the RK line was the best selling of his product lines. And still he was never able to put a real dent in the market that Lionel has always held... the traditional starter market. As of two years ago, Ryan Kunkle said it was the traditional starter set line that keeps Lionel in business. Maybe that has changed in the last 2 years, but I suspect not. So you should be thankful for those products, even if you don't buy them yourself.
As for K-Line, yes they were all over the place with their product lines, as is Lionel. But what put K-Line out of business was not the starter set/traditional products, but too many new scale products in too short a time period, from new expensive tooling. And furthermore introducing some of the new products as KCC member purchase items at rock bottom prices - even lower than their already lower list prices. It was one thing to put the MP-15 diesel as a KCC member incentive: That tooling was likely paid for. It was quite another to put brand new high end scale models as KCC incentives. Again, there were many posts at that time of "What are you getting from the new K-Line catalog" with answers along the lines of "Nothing. I'll wait to see what K-Line offers as the new KCC member incentive." Little wonder that K-Line was over $5M in debt: $3.8M to Sanda Kan alone.
And that wasn't from the 027 K-Line S-2 or similar products. And a testimony to the popularity of that locomotive was the RMT improved reintroduction of the K-Line S-2 as the RMT Bang S-4. That is one of the hardest engines to find these days. And not because it was built to order and RMT only made 100 of them. Obviously people like them and are keeping them, even though you don't see numerous postings on a daily basis about them.