well, if you are sure, then dont get the K.
but, for me, before i never OC'ed (well we all did at the beginning), then i tried it.
now whenever i buy a new processor, it will only take a few days before i oc it (just to feel the stock performance).
if i did not oc my 2500k, i would be forced to buy a new one. but since i am at 4ghz, 2 generations have come and i still kept this one. ill bump it up to 4.5ghz if i feel i need to