Why did Romney & Bain Capital buy the Hart Intercivic electronic voting machines being used in Ohio?

[owg]

"Through a closely held equity fund called Solamere, Mitt Romney and his wife, son and brother are major investors in an investment firm called H.I.G. Capital. H.I.G. in turn holds a majority share and three out of five board members in Hart Intercivic, a company that owns the notoriously faulty electronic voting machines that will count the ballots in swing state Ohio November 7. Hart machines will also be used elsewhere in the United States'.