Quote from OldTrader:
OK, maybe I misspoke. I follow corn for instance....ZC...no charge. ZC is the electronic symbol. I'm trading gold (GC at the Nymex, pit and electronic), crude oil (CL at the NYMEX, pit and electronic), bonds and notes, etc., all active contracts, all electronic, at no charge.
Now if you're wanting to trade cattle...maybe that's extra if you want it traded in the pit.
But frankly, there's a lot of variety in the electronic contracts which you can trade at no cost for quotes.
OldTrader
EDIT: And then there's still the issue of ButtonTrader needing quotes.