Correct, V4++ and the resourses morph packs are for end users that do not have the tools nor the time to invest to create something "new".
Using V4++ and the resourses moprh packs, everybody, content creators and end user will Always end up with "about the same thing".

if everybody can achieve the same results? Why would they buy? They aleady "have" what you offer up for sale? 

That's why I wrote : Start from fresh.
Use Blender (or equivalent) load the V4 object file, and sculpt, morph, become creative, make something "unique", make customers "see" what you have created.

The obj file being, one thing, the texture being a second. => Create a texture to go with your new morphed object file.

The rigging being a third thing. => Improve the V4 rigging, and show it in your renders.

Customers want to "see" what they are paying for, and you have to be unique in what you have to offer.

That's true to an extent, but when it comes to body shapes, it's important to use the Morphs++ packs so that customers can use the clothing they buy on your custom figure. Of course you can also include a custom body shape as well, (in addition to), and that has worked for a few top selling artists, but the one thing those artist's custom characters have always lacked is clothing support. Creating a custom figure that doesn't work with the available clothing, is basically just like creating a new figure. It needs clothing support to really catch on. Unless you are willing to be the sole creator of all the clothing that comes with it, or your character is intended pretty much entirely for nude/mostly nude renders. We do have the fitting room in PP2014, but more people have P10 than 2014. And it doesn't work all that well with everything, unless you're willing to spend some time with it, and even then it still depends on the individual clothing.