Both are good. I like the idea of a special run now and again-it gives a sense of "get in before they end".
Monthly sales are good because a person has some time to save up before buying. Here and there sales are flash in the pan exciting and can sometimes spark a person to buy too.
Nothing I've said is earth shattering. I still think that a signature knife is something to consider. Same exact blade, no stretching or anything, with many handle, liner, sheath choices. I vote the EWOK. Just sayin'.