eddie should post with a "no"....
...but, my answer if any girl that you are a tremendous fan of may be worth it.
The biggest difference, imo, is that you often will have access to complete galleries and the newest content. The problem with "complete" is that there are just so many pix and only a few that you really care to see; the problem with seeing the "newest" is that eventually they may end up at Freeones or other places anyway.
That said, there are still several (c10) set of Nikki that I have from her site that I have still never seen anywhere else. Also, sometimes, the images are HQ or at least HigherQ than the free sample pix.
If I joined, I would only do it once or twice a year. I would also plan on spending a few hours a day grabbing everything possible off the site for later....
:2 cents: