Some of these seem iffy. Looking at one at random with a seemingly excessive increase:
Coursera: $399 per u/y -> $49875 per year [7], 12400%
So, I check out the footnote:
[7] Coursera requires a minimum of 125 users to access SSO pricing. As they do not have an Enterprise price listed, this price just scales their lower cost tier up to 125 seats.
Dividing by 125 shows the SSO pricing is $399, so exactly the same as the non-SSO pricing. I fail to see how this is an SSO tax.
It might be that there is an SSO tax as the Enterprise price wasn't available to them, but listing it as 12400% increase seems like a deliberate attempt at deception.
I've used to work in small startup with ~10 people. The owner was always happy to pay for tools to developer productivity. We did not subscribe to Coursera, but in the theoretical case we'd all want to, the pricing would be:
10 users, no SSO: $3999/year
10 users, with SSO: $49875/year
It's an SSO tax, and a super hefty too. We'd probably balk at it and chose the less-secure option instead. And the fact that we'd get extra 116 licenses we had no need for is absolutely irrelevant, there is nothing we can do with it at all.
Even in your example, and assuming that the only feature that the enterprise plan offers is SSO, that's not even close to a 12400% increase, that's a 1147% increase.
My point was that saying the minimum order is 125 seats for enterprise, and so claiming that the price for a single seat is increase by 12400% is being deceptive.
If you buy a six-pack of beer, you don't say "This is terrible! I only wanted one beer and this six-pack is a 500% increase in price!". If you only want one beer, you just buy the single beer and leave the six-pack on the shelf.
If there is an option to buy a single beer on the shelf, sure. But in this case there is no such option.
Imagine you _really_ wanted to try Foobar beer. So you get to beer distributor, and you find out that while each bottle is just $5, the minimum order is a crate of 144 bottles and they give no samples.
In this case, you might say: "Yeah, I really wanted to try that beer but there is no way I am paying $720 for that". It's exactly the same here.
(re 1147% vs 12400% - sure, maybe you could argue you should not look at a single license, but rather at a pack of 5 or 10 licenses... but this does not change numbers much for Coursera, it's still huge increase.)
Coursera: $399 per u/y -> $49875 per year [7], 12400%
So, I check out the footnote:
[7] Coursera requires a minimum of 125 users to access SSO pricing. As they do not have an Enterprise price listed, this price just scales their lower cost tier up to 125 seats.
Dividing by 125 shows the SSO pricing is $399, so exactly the same as the non-SSO pricing. I fail to see how this is an SSO tax.
It might be that there is an SSO tax as the Enterprise price wasn't available to them, but listing it as 12400% increase seems like a deliberate attempt at deception.