Depends on your electric cost.  It is very likely that by the end of this year there won't be any coins you can mine that will pay you more than a couple of bucks per card per day.  If you have cheap electric, you can still eke out a profit.  Just don't imagine for a second that the profits you seeing now will continue for much longer.  There's just no way that can happen unless eth et al price keeps rising at the same dramatic rate it has in the last few months.  And if it did keep rising, you would make a lot more just buying and holding the coins themselves.