This is also true.
My only gripes are:
Dmitry's Futa has a lot of the good stuff missing from his gallery. So, to keep up-to-date, you must keep up with his posts, which do not give you the ability to look back at older ones. At least, all of this is what I am discovering, and if I am wrong, then someone NEEDS to tell me how to do this stuff.
With JigglyGirls, you have two issues. First, the gallery doesnt allow you to see new posts. You must search through everything until you're like, "Hey! Isn't this new!?" Reiq's blog doesn't always link to new pics too. Again, this is my experience.
Second, you can pretty much find all of the JigglyGirl stuff pirated online. So, if this were the ONLY reason for buying a membership, it wouldn't be worth it.
The Tekuho gallery is pretty damn hot, but Tekuho has owned like 4 sites, each with its own gallery. He has a DeviantArt gallery (free), a gallery on HentaiUnited (I heard it isn't updated anymore due to his new site), and there is the one at the website we are discussing in this forum. I think he had another site too, but I dont know the details about it other than that he used a longer version of his name, "Tekuho."
Anyways, what my point was supposed to be is that the stuff you find on sites like ExHentai (minus the shota pics) are not on his current site.
Whether or not to get a membership: it is ALWAYS good to support these artists, but Tekuho's non-shota stuff is super hot. I definitely would say that it is worth it.
Personally, to save money, I am doing this:
I bought a 30-day membership some weeks ago (probably about to expire). I collected missed goodies and am keeping up-to-date with new stuff. Once the membership expires, I will wait a few months, then buy another 30-day membership, collect what was missed, and then keep myself up-to-date again until the membership expires.
Let me know if I didn't answer the question right, and sorry for the wordy responses. My job (which hardly pays anything at all) is retail and Black Friday has godd me soooooooo tired that my sleep cycles are now all messed up and I can hardly think... but I get talkative and "typative" when I am exhausted.