Depends if the testers are taking an income.
Remember, I don't know how many countless fans said that they would volunteer to test stuff for Cyan, free of charge.
While I don't know if they have taken advantage of it (quite possibly very hard to do, legal entanglements, etc), that has to be a good feeling for them, knowing that they have so many people that would pretty much work for them for free, just to be part of their world.