Another was a Java SE licensing change that went from around $1k per instance, of which we had about 5. Mind you there is little to no maintenance support provided here. The increase was to $5.25 per organizational employee per instance, whether they used the instance or not - of which we had 100k. The choice was obviously a simple one.
I can only assume very few organization stay on the ride for those kinds of changes, but obviously they must - but why?