Your IT department are just cheapskates OP
Not necessarily

When speccing the required budgets for the annual PC refresh, we were able to buy considerably more machines if they used a mechanical drive over an SSD. Something as I've previously posted that most users wouldn't know any different anyway.
I think we were able to upgrade 150 old machines with our budget, it would have been considerably less if SSD's were included. (I think around 110-120 was the number) - for a gain most wouldn't benefit from. But everyone would benefit from a new machine over an old one.