I was thinking about the recent story about the DB looking for windows 3.1 administrator.
A classic issue I’ve soon working in heavy industry is that hardware last longer than windows version. So 10 years ago, you bought a component for the product you design or a full machine for your factory which only comes with a windows XP driver.
10 year latter, Windows XP is obsolete, upgrading to a more recent windows might be an option but would cost a shit load of money.
I have therefore the impression that Linux would offer more control to the professional user in term of product lifecycle and patch deployment. However, there is always that stupid HW which doesn’t have a Linux driver.
Purchasing decisions are often made by people who are not IT experts. They are heavily advertised to and lobbied at by Microsoft. Also, the people who make purchasing decisions now won’t have to live with the consequences twenty years down the line. So they go with the easy option.