cel4145
Headphoneus Supremus
I guess another way to ask the question is this. Is the computer itself the enjoyment for you? Do you just love building, tweaking, overclocking, running benchmarks, pushing the limits, etc.? In other words, would having a $2500 computer be enjoyment in and of itself? If so, go for it.
The thing is, though, that if one buys the top Intel processor and high frame rate GPU to built a bleeding edge fast computer for that kind of enjoyment, the enjoyment will be greatly reduced next year when the components are no longer the fastest. The guys that do as a hobby upgrade every year or so, not as "something I wouldn't have to replace," as the OP indicated, and they know better than to think that way.