The left lost this election because it failed to persuade the people that its analysis was correct. The people weren’t a herd of sheep dazzled by big money campaign ads on TV; the Wisconsin electorate chewed over the issues at leisure, debated them extensively, considered both points of view — and then handed the left a humiliating, stinging and strategic defeat.
What if, after careful consideration, the majority of voters in the #wirecall election decided that they are willing to accept a decrease the quality of government services in exchange for lower taxes? It's not a position I would necessarily take, but it seems reasonable.
That train wreck of a Metafilter thread does have some interesting analysis of how WI public sector benefits stack up.