These starter decks are fantastic value, because you get given copies of all 20 cards within them, and they're quite good to use as they are or with a few tweaks
Who knows if you're not a Final Fantasy player, you may even enjoy the set's flavor so much you want to check it out
On the other hand, for products like Secret Lair drops, Commander decks, or other preconstructed / box-set supplemental products, we used the cost of buying the sealed product (which is generally lower than the cost of buying all of the cards in the product individually) from around the time the set was released (for sealed product, you'll often pay much more if you wait until the set goes out of print to try to buy it)
Craterhoof is the best Overrun effect by a mile
We'll be breaking down everything you need to know about the formats, the players, and the metagame ahead of the event