I personally do both, because I enjoy the excitement that comes with opening up packs and pulling cards, but I also know that sometimes, given the odds of pulling some of the cards I want, its sometimes best to just pick them up at my local game store or on sites like TCGplayer
During the video and in the comments, no mention of the sale price was given, and unsurprisingly the people involved may want to keep it private
Its like having a living, breathing battery right in your pocket
While each card has a different name, they all do essentially the same thing, as seven-drops that actually cost one or two mana if we can fill our graveyard with spells, with big bodies and some sort of upside
The aim of the deck is to summon Eldlich as fast as possible, then prevent your opponent from removing it