It's more that buying old PCs is safer than trying to reverse engineer drivers. Buying enough extra hardware to have spare parts for the life of the product is a pretty well known and cheap way to insure no down time.
I have experienced even when the original driver writer (me) is still on staff, it can be less expensive to just keep buying old-spec PCs than rewrite the code for a new OS. I make the company more money writing new code than supporting code that's a decade old.
It's more that buying old PCs is safer than trying to reverse engineer drivers. Buying enough extra hardware to have spare parts for the life of the product is a pretty well known and cheap way to insure no down time.
I have experienced even when the original driver writer (me) is still on staff, it can be less expensive to just keep buying old-spec PCs than rewrite the code for a new OS. I make the company more money writing new code than supporting code that's a decade old.