Dash price has gone up by 200%, while difficulty - by 300%!
Difference: 3/2 = 50%. Dash has become 50% less profitable to mine using Genesis Mining so far. There is 100% proof that difficulty will keep going up, but there is no 100% proof the price will follow... Even if it does, It probably won't follow up at the same level, unless it SKYROKETS for some reason, which is possible, of course.
I agree that it'd be more profitable to mine by ourselves...