Only a percentage of people got to fifty, only a percentage of those even opened Alpha, only a percentage of those went higher, and as you rise in Incarnate power, more and more percentages get shaved off. Eventually you're left with, like, three people. Do you really want to restrict important lore-related content to something that, like, three people will get to see? Personally, I'd make it a signature arc. Pay your five bucks and you unlock it on every one of your 50s. Still restricted to the people who actually get to 50, but at least that's a far more significant portion of the population than people who climbed Alpha (take a few percent out), Judgement/Interface (take a few more percent out), Lore/Destiny (take a few MORE percent out), Hybrid (continue the trend), Genesis (keep it going), Mind (reduce numbers further), Vitae (here we go again), and three levels of Omega (that's a lot of people to lose to attrition)...the end result would be a vanishingly small number of people.
It is. Completely illogical. Aka kinda dumb. I didn't say you were kinda dumb, I said the idea was. 
Let me say I'm not trying to start any kind of a fight so the earlier comment from darkgob really doesn't apply. Sorry DG.
Ok, now to the response.
That kind of was the joke. Setting it up in such a way that it was incredibly hard to get to and would make our little Irish Lass cough over the concept of doing that much work. I think you might have missed my inference that the decision you make will actually change the game.
I know my sense of humor is not universally gotten and yes, some jokes do miss. I guess we can chalk this one up to that... unless you are just trolling the absurd for fun... Nah, no one on the internet would do such a thing.
But I still say more than 2% did the Incarnate thing.
That being said, we are actually fairly close to having the same real concept. I actually would want to have story arcs that contain a permanent change in the Mythos of the game, like killing off characters, to be level 50 content only.
The sentence structure of your line ending with "... kinda dumb..." gave a slight inference that you were pointing the insult at me in addition to pointing it at the idea/joke. I took it as a double entendre anyway.
If not, no harm no foul.
Now let us all go to the Ski Chalet for a glass of eggnog and some traying in celebration of the season.
For the uninitiated, Traying is the same as snowboarding but was done using cafeteria trays which we had to steal... not that I was involved. It also involves more drunk people.
