Because I'm not going to waste my time learning how to use a certain set of films with such an uncertain future. They haven't said Tri-X will be discontinued, but they haven't said it WOULDN'T be either. All they can say is "We don't know."
When I inquired with Kodaks customer liaisons, they said they didn't know anything, other than Kodak was in fact selling.
I've chosen to move to strictly Ilford films and chemicals. One film, one developer, one method..... Isn't that what everyone preaches? And ilford, unlike Kodak, can give me a certain future with the same formulations and products. Kodak can't.
Makes sense to me. Ilford offers a certain amount of stability that neither Kodak nor Fujifilm can. Ilford's core business is film. Not so with others.