One reason for her popularity was that she had no competition for a LONG time.
V4 came out, along with the ++ pack, and was heavily promoted at he time.
Then SM released a next version of Poser with no new figures.

That was almost a 4 year time gap that SM did no new figure release.

So V4 kelpt on rolling, and content free and to pay for, continued.

After this, most end users where way over their point of no return in investment.
They invested a lot of $$$ in V4 cothing, and that is also the reason why she is not gonna die out soon.

Any figure that wants to "beat" V4, will have to be soo special, soo perfect, so versatile, that it is close to impossible to do so.

And a new figure starting without support content, has to compete with V4 that has thousands and thousands of free and to pay for items ready.

I wrote this before;
If anybody would like to release a new figure?
They will have to SATURATE the freestuff area's for AT LEAST 6 months, in order to start having a chance to compete.

Only the creators can make a new figure popular enough, for content creators to jump in.
If a creator fails to make his/her figure popular before thinking in dollars? Forget it.

But who has the resourses to run a full first year on a red bank account......

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!