What is the best desktop build for under 2000 dollars?
this site could help:
Logical Increments - PC Buying Guide
but, like stated above id wait for the new intel processors to come out, also you could wait till more of nvidias 700's come out.
How long will the desktop last me until I have to upgrade?
For 1.5k you should get quite a solid build, my guess is 4 years? Probaly earlier if you want to play the latest games on highest quality.
How often do I have to upgrade parts?
Depends on what you buy e.g. if you buy a better graphic card you will need to upgrade other parts earlier. Its quite complex but you can find out what effects what by reading through the website above or through the forum here.
Is this cheaper, in the long run, than purchasing a laptop every year or two?
Of course, laptops are always more expensive than a desktop, also you can build a destop together which makes it eaven cheaper. -> laptops are not really made for gaming.
Hope i could hep
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