Romney, a busy and industrious man, isn’t goofing off. Privately, campaign aides point to the heavy burden of fundraising imposed on candidates since Obama blew up the system of publicly financed campaigns in 2008. Keeping up with the president in the money race takes up a lot of Romney’s time.

Aides also stress that Romney is not the only person campaigning for the Republican ticket. Running mate Paul Ryan is out on his own most of the time, as are, occasionally, Romney’s wife Ann and his five sons.

But the fact remains: Mitt Romney is the man running for president and has to make the case for himself. As the top of the ticket, he draws the most attention and news coverage. Holding more events means more coverage, which means more voters see Romney.

Having Romney campaign in person is particularly important now because he’s trying to craft a more effective message.