Election Boycotts

If a candidate decides to boycott an election, should the election be void? As a matter of law, the States of Michigan and Florida held, at taxpayer expense, elections for the democratic primary. Should the states allow the parties to ignore the state election?

It seems to me that the elected governments of the states should trump the party apparatus. I see no reason why a state legislature should allow a party to ignore the law and votes of the population that the legislature represents. There are various ways to enforce acceptance of the results: for example, barring parties from the general ballot if the state primary election is not honored.

I fail to see any reason that Obama’s boycott of the Michigan election should be rewarded.