Nexon is doing an okay job with DFO at the moment, minus a few recent hiccups..
Game content is being released pretty quickly, next patch being this Tuesday (Tower of Death + pets/the introduction of the priest patch soon) and the cash shop is not overpowered in any way, since you can buy avatars with in-game gold (and boy is there a huge market for that).
There's pretty much nothing in the cash shop that is "mandatory", since for storage you could create multiple mules, or just do a quick NX survey, buy a safe slot upgrade, and voila.
Gathering from that, I'm expecting Nexon to do a good job with hosting Vindictus.
