ibjeepr :
You're continuing to focus on just the video cards instead of the whole system, which is what I commented on.
Second, go back 4 years to late 2008, early 2009 and see what video cards where out and tell me which ones you would recommend over a 660 ti or HD 7950 now. Even in SLI or Xfire. Then do it for processors and ram, then find a current motherboard they'll even fit in.
Third I said in my post that 3 Titans would still push enough FPS to be useful but a poor value compared to a new gen midlevel card so I'm not sure what you are debating there.
To say this system will be highend in 4 years is just silly. As I said, usable still, yes, high end, no, worth 8k now, no.
I'm still going with my original post.
Even including the CPU and RAM won't change much. The RAM isn't an issue whatsoever since the capacity will be plenty for many years to come and the RAM performance at DDR3-1066 and DDR3-1333 is already not really a bottle-neck at all, so the faster memory in such as system as this won't have any issues at all. For example, we could have 12GB of triple channel DDR3-1333 memory or at least triple channel DDR3-1066 memory with the early X58 systems and that's far more than necessary for today's high-end gaming systems.
As for the CPU, even going back and looking at say a quad-core i7-9xx CPU that's overclocked to about 4GHz, it still has high-end gaming CPU performance today and that's more than four years old from late 2008. CPU performance improvement has been slowing down as Intel focuses more on reducing power consumption and BOM than on performance improvement, so it stands to reason that the i7-3970X in this system won't have any trouble for a long time, especially since games are getting better and better able to use it's huge number of threads effectively as time goes on. Even a highly overclocked Core 2 Quad/Extreme in a DDR3 motherboard with say 8GB of decent DDR3 memory can have high-end CPU performance and plenty of RAM capacity and RAM performance for any current game.
Furthermore, again, whether or not I'd recommend say three GTX 480s over say two GTX 670s is irrelevant as far as this matters because the three 480s still have high-end performance. The same will be even more true for Titan which is much further ahead of the performance generation curve than the 480 was. Considering Titan's curve, it'd be like a single GPU card from the GTX 200 series with performance comparable to the dual-GPU GTX 295, aka similar performance also, to, you probably guessed it, the GTX 480.
What I'm saying is that even around four years later, this article's computer will still be a high-end gaming rig. No mid-ranged graphics card, even two generations down the road, will be anywhere near as fast as three Titans. The same is probably true for three generations down the road. Maybe four generations later, there will be a mid-ranged card that can touch three Titans. However, I wouldn't even put much faith in that. None of those cards will beat three Titans in price/performance at the time because you'd already have the three Titans whereas replacing them will cost money.
I'm not even saying that the article's computer is really worth the $8K price tag, although the CPU and graphics are easily worth $4000 alone even if you buy the four parts themselves. The rest of the system is undoubtedly similar great, so it might actually not be all too badly priced for an OEM system compared to a similar homebuilt system. Price/performance, Titan still sucks and so does the i7-3970X. However, that's pretty much irrelevant because there is currently no alternative for the Titans and going down to say an i7-3930K won't change much since the budget is already so huge.
So, yes, even the CPU and RAM will be fine. The CPU and graphics will still be high end for a very long time and the RAM won't be an issue either. There, I didn't focus just on graphics
😉