OK, but I'm pretty confident that the Jerry's Nuggets are going to be in the minority of that mystery pool, if not in the realm of one, maybe, two available. So I don't think the odds are equal across the decks that they are offering. You know as well as I do putting that particular deck in the marketing photo is done for just one reason.
Yes "A" chance is better than no chance. I still think I would be more interested if you at least got your money back on your Mystery Deck.
Now yes, I'm new to all of this and still learning and in the grand scheme your probably going to be on the up side buying six Mystery Decks, but we're looking at it from a $$ standpoint rather than the actual deck you receive. Right now I'm more comfortable seeing what I'm buying, and as for trade fodder, I think it's easier to toss in that extra deck or two when making your purchase.....ie, picking up a couple extra Exquisite, Legends and JAQK decks for half the cost.
Its a personal preference and I'm sure someone will get a great deck back on ONE Mystery purchase and prove me wrong, but that's OK. Maybe my tune will be different next year, lol