I stick with M4 and V4 because quality and appearance wise, Genesis just isn't much better, especially for those huge file sizes. And for the majority of poser users who are casuals like myself, that's all that really matters, is the appearance. Add that i'm more of a photoshop postwork whore, and that makes Genesis even more irrelevant. Bad bends or creases? Easy fix in photoshop. Slight quality difference? Easy fix with softening techniques/HDR toning and for those more advanced users, Luxrender/Reality. In some cases, Genesis products look worse than some of their older ones. Sanctums Horde Werewolf looks way better than the Genesis MS Werewolf. The Horde werewolf was made like 3-4 years earlier too.

A lot of us already have bought a ton of products for M4/V4 too, and don't want to buy everything again. Genesis does make some things easier, but that doesn't matter since we're already comfortable with how the Generation 4 products work, so we're used to things like morph injections and what not.

And even though i'm using poser pro 2012, there's a lot of people still using earlier versions, which Genesis is not compatible with. And i keep reading that DS-on has quite a bit of problems. It's just not worth it imo.