Since EM lowered the bonus from 50% to 25% they still wanted a way to convince people they were getting a great deal by throwing in the headphones plus the 25% bonus.I'm disappointed that Elio would be involved in such a promotion.
So they included the headphones for NEW $500 or $1K All In reservations.
Then a bunch of folks that got 50% + bonuses did enough moaning and whining they (EM) worked out a deal with MTX to get a limited number of headphones to sell at cost to the older $500 & $1K people.
It was a token of showing that they want to treat the older (longer waiting) people to a good deal that really wouldn't cost Elio anything.
I call that very smart on EM's part.