Suda51 likely either has a small but skilled team assembled (and if memory serves from Contact's credits, this is very true of his pre-NMH games) and can thus afford to make games for very little due to few expenses, or he has some special ties to the big-shots above him that lets him keep Grasshopper Manufacture alive even when his products never make the break-even point.
Sky Render - Sanity is for the weak.