geofelt :
Worth is something that only YOU can determine.
But... if you have the budget and the itch, I say scratch it.
Otherwise you will be forever wondering if you should have made the change.
For sure.
If you feel like moving up to 1440p, or just aren't getting a perfectly smooth experience,
and have determined the cause is not processor related, then maybe the GTX 780 Ti would be worth it.
Personally, I don't see how Maxwell is going to replace the powerhouse that is the GTX 780 Ti, at least not from a value standpoint and certainly not in the near future. So waiting is up to you, but I wouldn't.
@geofelt: mailto:4670K@4.4
I don't think I've heard of that domain name