Betrayers of Kamigawa Booster Box

No there aren't any real savings here unless you hit the foil lottery and pocket multiple Jittes or a shoals. Once a box goes out of circulation they will never be reprinted so sealed products prices go up as supply goes down. The prices rise even faster when cards like Jitte are present in there but if you're looking for the card you're better off buying singles and saving money. For instance I buy out of print boxes to draft with my friends so the value of the cards in the box are a bonus to the fun drafts we do like an old theros or innistrad box. Kamigawa is an old set so sealed product is getting harder to find thus the price.

So, is there really a savings here? I have a ninja deck that I built with cards from the kamigawa block, but 300 bucks seems like alot... Does the value just keep increasing as it ages?

MassDrop uses the same price of boxes that they do for the box/fatpack combo and idk why. A normal box goes for about $100 when released but when it ages some of them spike in price because of high value cards in the set but its usually not worth buying it unless you're going to do drafts or have fun.