I don't know very many people who would think $3,000/month is peanuts. It is, however, a drop in the bucket for a cluster that bills a few million a year.
When thinking about the expenses of a radio station, a friend of mine is looking at buying an AM/FM combo in a small, unrated market. It's about midway between two larger markets, though neither is in the Top-100. The stations bill fairly well, but the payroll expense is $30,000/month. Payroll in radio adds up a lot faster than the electric bill.