In the late game, we potentially can store up enough energy to make three, four, or more on the turn that Whirler Virtuoso comes into play, which is a ton of bodies for just three mana
It no longer lets you cast every spell at instant speed, but that allows us to make cooler cards at better rates
Angelic Aberration: A sweet way to upgrade all those Spawn tokens and Scion tokens into 4/4s, though this Eldrazi angel probably sees play in normal token decks
Professionally graded Pokemon Cards (for example by PSA) often sell for higher prices, especially if they are in near-mint or mint condition
and similar types of stores elsewhere
Any abilities that trigger when a creature with a certain power or toughness enters the battlefield will see the token enter as a 1/1 creature