I've done both for years now; from about 2000 to about 2006, I was in an office. From 2006 to about 2008 I was home, full time. From about 2008 to about 2012, office. Home until 2015, then office for about a year, maybe less, and then home full time since.
I don't see an overall windfall to the budget either way. AC? Okay, but potential tax benefits, no "lunch" every day, no gasoline or dry cleaning. I've got my cynical AF hat on now, but that to me is typical, myopic one-issue thinking that we have in abundance in our society today. Sounds to me like free copies of Elton John's album "The Big Picture" would be a great thing. (I'm kidding, of course, but it IS a great album that has nothing to do with this conversation other than the title.)