Cards that make duplicate, extra, or double the tokens abound here, so if you can build something to take advantage of that excess while surviving through the turns when your stuff is a bit durdly and slow, you will have a powerful deck that can bide its time and then pop off
It means no matter how many times your opponents deal with your commander, it's always a threat
There are a variety of ways to punish opponents for drawing cards in Magic, and sometimes theres just a good old-fashioned group hug in Commander
If WotC abolishes the reserved list and reprints the cards on it, they could lose their value, and the collectors who had invested in the cards would no doubt see their collection lessen in value
People learn things at different paces and with different strategies, and some just want to learn on their own without a seasoned pro walking them through it
Duress is another card that can serve as a good substitute for currently played pricy cards