Esme Vos of MuniWireless.com expects a massive growth in spending on metro-scale networks: Vos estimated $177m in 2006 spending, but that's mushroomed to an anticipated $235m. With larger county-wide projects in the works, so, too, will capital and operational costs expand. The latest report from MuniWireless.com expects $3b to be sepnt across four years, including operational expense.