It's more expensive because it makes it more exclusive. In all my tastings, that's all I can come up with.Here in the colonies JW Blue is about twice to three times the amount of JW Platinum or as it is called JW 18 Year Aged. Why would that be? The JW Blue here does not state an age. I have tried both but it is a close call with me leaning towards the Blue.
I like the Blue, but it's not enough better to be as expensive as it is.
If given the choice to spend $90 for Platinum or $200 for Blue, I'm going with the Platinum. If they could get the Blue down to $135-150 I might go with the Blue.
I'm sure you're going to enjoy yourself no matter which way you go, so no mistakes really possible there.