I think the difference is that the mainframe isn’t going anywhere and the large companies themselves have been thriving and will likely continue to do so. My e

I think the difference is that the mainframe isn’t going anywhere and the large companies themselves have been thriving and will likely continue to do so. My employer has a number of them and they work great although it’s challenging to find the developers. If it was my decision to migrate I’d be hesitant because it seems as though infrastructure is priced low enough to convince people to switch but then will likely creep up over time in either prices or lock-in.