For me, losing BW400Cn in 120 really hurts. It's just not practical for me to develop film at this time, and I have very little of what I shoot printed, so it's practical to have it done by someone else. I found I really like BW400CN any time I don't want much grain. I recently bought a 645 just for the larger negative, then this happened. As for Tri-X 320, well, I recently tried some and love it, and was planning to use it once I have a place to develop. And I much prefer 220, so it hurts double.
I think one of the reasons this sort of thing is so distressing and makes for disgust and anger at Kodak, is that we know Ilford will try their best to match market demands and strive to deliver as many products as they can. Their existence depends on serving B+W photographers, and fewer choices can mean fewer film photographers. They have thrown all in with B+W, so there is no doubt as to their commitment.
I think many people are really beginning to wonder about whether they should commit to a Kodak product, only to see it go away. Especially in B+W, where a preferred film/developer/method combo often represents a lot of time and effort invested. And it's getting to the point where many are seriously doubting Kodak's commitment to, not just products, but product lines. From "B+W? Maybe." to "Film? Maybe."
Kodak used to be synonymous in the US with film, and I, a Kodachrome user, just naturally went to Kodak for B+W film on the occasions I shot B+W. By shrinking their offerings so far, they just no longer seem to be someone to go to. They go from responding to a shrinking market to contributing to a shrinking market for their products.
I know this has been talked to death, but I do believe that Kodak fell prey to the same mentality that afflicts many large companies: an inability to see how to succeed on a small scale. Sometimes spinning off a division can save it: that is, freeing it up from old thinking. I'm not saying that's the answer for Kodak, but can see that freeing up a still photo products division or B+W division could be a way to help it survive. After all, a product may not be as profitable as it used to be, but having no product to sell means no money to be made.