You're paying 25 for a pack that might contain 30 worth of cardssounds good, but you need to actually sell those cards to realise the value, and that introduces friction, fees, and time
Collector Ouphe wrecks those strategies, plus Treasure decks and anybody leveraging vehicles or equipment
Players are more likely to sell those individually, and that means assessing the card's current market value, its physical condition, and more
Commonly played examples include Aristocrats where you sacrifice something like Reassembling Skeleton to a mana free sacrifice like Ashnod's Altar and then trigger the Zulaport Cutthroat to hit all foes as your win-con or hitting with Guttersnipe and similar triggers in a Spellslinger deck for your instant and sorcery casts
All of the Egyptian Gods and their forms do not have a password, but one form has a related password that is technically a non-card password
And with 2400 attack its worth the cost