Argument: Costs less important than appealing to all voters in open primaries
Susan Nielsen. "Open Oregon's primaries." Oregonian. October 13, 2008: "Party leaders tend to love closed primaries. It's cheaper and easier for them, because they don't have to appeal to as many voters. They've forgotten one risk of clinging to a closed primary. Eventually, a critical mass of voters will either feel frozen out of the system or weary of partisan politics. That time may be now. Voters ready for a more open primary should support Measure 65."