In response to the OP....on page 65! Go figure!

Honestly, given that released content:

-Requires funding, effort, and resources.

-Requires people to actually take advantage of it for there to actually be a point to it.

...and also given that...

-Everybody has different tastes and goals while playing MMOs.

-Even the most dead content has some people taking advantage of it, even if it's a whopping 3 people on your data-center.

...then the conclusion is...

What really matters here is distribution, supply, and demand. Even if Eureka is not liked by 99.999% of the player-base, I'm fine with it being in the game if does not hinder the creation of other content, hence an example of an abundance of supply and balanced distribution. How SE would go about doing that, I have no idea.