I think people tend to get confused as to what a "boycott" actually is. Boycotting is to not purchase something you otherwise would have purchased due to some sort of moral or philosophical objection. In other words, if you hate sports games, it is literally impossible for you to "boycott" the next Madden game because you hate EA or you hate microtransactions or you hate whatever. You aren't boycotting, you simply aren't buying a product because it does not offer you fair value.
To boycott would be to refuse to purchase a game you love because of some stand against DRM or microtransactions or whatever. And judging by the sales figures for Diablo 3, boycotting is not a statistically relevant thing that is actually happening at this moment in time.
Edit: Remember the bus boycotts for civil rights in the south? The reason that was effective is because the participants were mainly poor black people who previously rode the bus very frequently. Therefore, their sudden refusal to use the buses represented a huge loss to the bus companies (or city governments, whatever.) If the only people who boycotted the buses would have been rich white people who owned nice cars and never rode the bus anyway, it would have had a net effect of about zero.
--
SmartMuffin - Because anything less would be uncivilized - http://img.imgcake.com/smartmuffin/barkleyjpgde.jpg
http://dudewheresmyfreedom.com/