I'm in the exact same boat Marco....

I really want a new titan box with a trillion bytes of ram, but i'm worried the same way. I have been working on a xeon/quadro box for years. But i suffer in the newer technologies now....

If i got a new gtx system, i still have the old one, but dont really want to go back to a split system, with some things on one and some things on the other. I like having everything on one now, so i compromise.

For me, the workstation is still cutting the mustard. But i dont work in a vfx shop, etc...