Of course, the explanation is BS, everybody sees that. But I want to comment that as a young mainframer (I started 14 years ago at the age of 26, with a big IBM competitor), I really enjoyed working with older people. They work quite hard (they have survived lots of changes in the organization, and that - in majority of cases - means that their contribution was appreciated somewhere), often are less crazy (they are s…
I'm curious, how many real competitors are there to IBM in the mainframe space? From what I've seen the majority of the products in use are basically IBM only.
A lot of mainframe users never needed a mainframe, they just didn't want to get fired for not buying IBM. Other users need some sort of mainframe reliability, but that's also achievable on a distributed system running on unreliable PCs.
There are some users whose use is genuinely deeply entwined with features mainframes provide, but those are dying out.