This is dependent on the market, last gen all consoles were selling well and market was completely divided so to maximise profits you released games on as many consoles as possible. At the moment, the consoles are similar so the same is happening but if PS4 were to take a ridiculous lead (like the PS2 did), then people just wouldn't bother making a Wii U or Xbone version because it wouldn't be cost effective.
Hmm, pie.







