Since people have so many, the value of them will be very low for a long time. I'd say they're worth about 50 cents for a good one, but IF more people start to use Brabble, and it actually takes off, I could see them becoming as valuable as IG. As for if people stocked up on IG names, I have no clue. Wasn't here for that.
Not many people did this with IG when it first started. The only brabbles that will sell are the best. like one characters. So do not try to sell random word brabbles like @china.