The airport has an interesting history with Wi-Fi that I've been writing occasionally about since 2003: It's a fairly small airport, not atypical for state and province capitals that tend to be located in politically expedient places that aren't often also bustling metropolises compared to the big towns that developed in their political unit. (Olympia? Albany? Austin?)
Sacramento originally contracted with Airport Network Solutions, which said back in 2003 that it would cost $110,000 to add service. I noted in Aug. 2003 that without aggregation and resale they'd never recoup even the modest cost based on their assumptions of users and what they were charging for a day pass ($6.95). The airport apparently bore the cost of installation repaid out of fees rather than requiring its contractor to eat Capx, which is quite odd.
ICOA bought the installing company in Nov. 2003, and it has resale relationships with many aggregators and operates service at quite a wide array of medium-sized airports in North America.
The Sacramento Bee story today says that the contract with ICOA expired and the service never produced revenue sharing that exceeded the cost of the equipment. But the airport now owns the equipment, it appears, and is offering free service.