Is key hunting worth it?

keys=alot of time w/out nigma and MH=uber set number1 that is hard to beat=ubers set number two that is god damn near impossible to beat(unless you have smiter buddys)=torchs that are 90% of the time worth like Um-Ist. Plus you've got to drop trade them suckers.
You might as well get 2 or more cdkeys and spend your time grushing mules to hell and doing forges.

But killing tristram is fun