It's sometimes a good move and I've seen it recommended here at HN pretty often I think. look:

https://news.ycombinator.com/item?id=16477003

"I've now 4X'd my pricing (from 3 figures to 4 figures a month!) and the customers got 10X better, complain less, I work less and earn more"

With certain requirements from large corporations switching from usage or license-based pricing to models such as charging per employee in the overall organization, it's hard to imagine it doesn't involve a little greed. It makes the choice even easier when clear alternatives are much more economical.

Imagine for example you're a small shop with your own budget in an org the size of Alphabet with a couple of Java servers that you purchase support to the tune of $5k/year and then they all of a sudden want to charge $1,000,000/month because there are ~200k employees within your larger organization.

It gets even more convoluted when you get into hardware support, where the support itself outside of warranty can be more expensive annually than replacing the hardware and getting N years of support with warranty.