I think EarthDog and AJ may be misunderstanding my comparison.
The periods of time I chose were arbitrary. With either choice, the total time of ownership will be the same and will consist of two alternating "phases". The first "phase" is single, high-end card. The second "phase" is Crossfire. In both of these phases, you will have top-of-the-line performance.
The value of alternating back and forth between these two is that their costs are always (roughly) $300 for the new card and $150 for the second card (for Crossfire).
Currently, the OP is nearing the end of "Phase 1 (single, high-end card)". If he skips the Crossfire Phase, he'll be losing out on the $150 savings that it brings.
As I said earlier, there are times where this cycle isn't necessarily the best option. If you get a great deal on a new card (like I did on my 7950
![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
), then it makes sense to skip CF/SLI.
It should also be mentioned that I don't care one way or the other haha. $150 is not a lot of money, so if the OP would rather have a new, single card instead of CF, it really isn't some huge loss.
I was just trying to point out the most "economical" upgrade cycle.
EDIT:
Also,
well, your awfully persistent about going with a 2nd 6950, so I'm going to trust your decision and do that.
Thanks for all the time and feedback guys
PLEASE make this decision yourself. If you don't, it doesn't matter how much money you save, you won't be happy
![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)