Wayne,
Z and I just returned from winter break in Marathon, in the Florida Keys.
The iguanas are plentiful and waiting for you.
A few people we met thought the iguanas were neat, but the majority were all for keeping a pellet gun handy and shooting them whenever you saw them.
The HOA maintenance man where we were staying has killed 300 in the last 3 years and is constantly on the look-out. All the folks in the TownHouse complex told us to kill em when we saw em.