They value the ability to stay open
This order could matter if you tap Millikin for mana, for example, to pay for a library ninjutsu ability
A silent MVP for me was Into the Flood Maw, with so many players on Auras and Prowess, the one mana bounce lines up well to disrupt Tricks or just bounce a suited-up creature
Youll be looking either for a commander that cares about hitting your opponent like Anowon, the Ruin Thief, or something that makes it likely that youll get to hit the opponent with multiple creatures like Oona, Queen of the Fae
Whether you're focused on building your collection or just tracking the value of cards, it's easy to manage and update your collection in one place
Being able to buy MTG cards on a singular basis can help you elevate your deck or beef up your collection in a way that purchasing decks just cant