Mathematicians call Complex Analysis "The Disneyland of Mathematics".  Everything you might want to be true is, and  stuff you want seems to fall out of the air by magic.<p>Numerical Linear Algebra is math's Exurban Sprawl.  Everybody's problem falls into one of a few cookie-cutter categories, and nobody minds the sameness because the solutions we have are good enough and cheap enough.<p>NLA is an amazing field if you think about it -- but you have to think about it.