Quote from Businessman:
As a non member i pay much higher exchange fees, i think five times as much as someone who is a member.
So if CBOT lose 200K a day in volume from members trying to make the bid ask spread, but they gain just 50K from non member day traders attracted by the smaller spread (like myself), they actually make more in exchange fees than before.
Not a chance that this is or could be the case.
You really only need to trade 1000 contracts per side for the Entire Month for a lease to be beneficial.