You're right, there are cases of boycotts like this.
Another interesting case was when the whole editorial body of the journal "Topology" resigned in 2006 because they thought that its owner, Elsevier, was charging too high a price for subscriptions. Those editors then set up a rival journal, called Journal of Topology.
Another interesting case was when the whole editorial body of the journal "Topology" resigned in 2006 because they thought that its owner, Elsevier, was charging too high a price for subscriptions. Those editors then set up a rival journal, called Journal of Topology.
There is an interesting letter here from the editors of the journal explaining their reasoning behind their mass resignation http://math.ucr.edu/home/baez/topology-letter.pdf