Comment by mgkimsal

> For example, the end of life of the old java versions (1.5, 7 and 8 etc) - plenty of companies simply just paid a support fee and get support, while others paid to upgrade (or even change stack)

And plenty others simply keep using the old 1.8 version because there's no budget to upgrade and there's no budget to 'pay a support fee'. And there's no budget to 'change stack'. Because... there's no budget.

Convincing people you need to upgrade or switch to keep current is often a hard problem, and sometimes has to be done with "you'll get all these new features!". But often "hey, we need some money to upgrade system X" is met with "hrm... it's software! It doesn't rot!".