Not sure why you all laugh, i have 50GH and mine ETH mainly.  It's profitable enough to me and the upside imo is better in the future.  Is it possible to make more mining something else?  Sure, but swapping that many machines, plus fixing issues with swapping because there will be etc is not feasible when you have a crap ton of units.  I jump to other coins, like raven for instance when it showed a daily big (10 + more %) increase for a week.  Then its worth it. 

Just because mining ETH is not profitable for you, don't mean it is for the rest.