Suggestion to keep game interesting after level 50

[Lesrider]

Oh I was thinking more simplified, like what DD has -- you invest money into an item to level it up, and then you get to add a stat point to it. Each time you level, it costs more gold. And of course there's a level cap.
With DD it's great, but here it would be even better, since there's so little room for variety. With this system, you could add ms if you need it or armor if you need that more. I don't play pvp, but it would make that more interesting too.

Of course there has to be a level limit or people would get way overpowered.

This would be great, too, for the elite campaign coming up, since it should be much more challenging.

Edit: unlike DD, I think if you sell an upgraded item, it should revert back to lvl 1 before you sell it. I also don't think you should be able to trade a lvl 10 item. Force people to work for these items, like the cyber items. Too many people have gotten lazy and don't farm their own crap.