One reason why the Electoral College will never be abolished: small-population states would lose the enormously disproportionate influence they have and would fight to the death to protect it. The New York Times posted this map (larger image):
The NYT notes:
This map shows each state re-sized in proportion to the relative influence of the individual voters who live there. The numbers indicate the total delegates to the Electoral College from each state, and how many eligible voters a single delegate from each state represents.