replacing the entire car because of the poorly designed CSC? no
your case is an extreme one. (Joelito) mine went out at 24k. im at 61k now and it feels good still. (omg please do not jinx me on this)
i shift carefully and dont jam the clutch pedal down, or launch the car because im concerned about it breaking again. if it does its out my pocket.
for some people its all in the way the dealership bleeds and installs the CSC. im not sure if there is some special method...???
p.s. if anyone is wondering the GTR brake fluid is $45 a quart at Nissan. :/