Here in Cali, it's just part of the cost of doing business. We got our first signs in August, and it's been taking about four weeks for 100% to be either vandalized or stolen outright. Now that we have more out, it may take longer. Dunno.
Interestingly, the Kerry signs seem to remain indefinately....
sorta like a Twinkie?
Wouldn't it be great to put an electrical charge in the sign so when they touch it........they get zapped? Not enough to do permanent damage, just enough to give them a wake up call......