Electoral College as Check on Election Fraud

Nick is thinking about election fraud and the value of the Electoral College. 

I was struck by a thought.  A lot of people, especially after the 2000 hanging chad fiasco, wanted to switch the presidential election from the electoral college to a popular vote.  Although it was not envisioned for this purpose originally, might I suggest that the electoral college is also a way to reduce the impact (or at least increase effort required) of election fraud.

In a popular vote scenario, you can tip an election by increasing the percentage high enough in a few populous areas.  But in an electoral college system, an increase in any one area will only affect that state.  In essence, to be successful, you’d have to perpetuate much larger scale fraud in more states.