In my years of personal experience, examining good decklists, and talking to people much smarter than me, 50 mana sources is about the right number for most decks to shoot for, usually 37 lands and 13 ramp sources for a general budget deck
Realistically, it doesn't matter
This tools consistent demand combined with its mythic rarity and lack of reprints has helped it maintain a $22 price tag, making it a great box topper selection
Redundancy matters
In FINAL FANTASY XIV, this ancient technique is wielded by a deadly weapon pitted against the Warrior of Light
If you've built up a solid board when casting your Commander, you're sure to become a target for the other three players pretty quickly, so protecting your Commander avoids the casting tax from ramping up too early in the game