The idea is to give you a glimpse of the importance of the little stuff
One place where opening makes sense: an Enhanced Booster Box at MSRP ($180-200) gets you the exclusive Bulbasaur promo and knocks out a good chunk of your commons cheaply
Don't be like those guys stealing things: here are some reliable places around Grand Rapids to get your Pokmon fix
Best of all, only Sauron, the Dark Lord has good protection with its Ward ability, which will often make it practically hexproof since so few decks would casually sacrifice their legendary Commander just to lower Sauron's shields and target him with removal or other effects.
While it adds a small cost to your shipping label, its a worthwhile investment for the peace of mind it provides, especially when you're shipping a rare or valuable card
The upside of the mechanic is that you have the ability to build a creature stack to your liking, whether thats making a small one with a cool ability larger or giving a larger one neat abilities