We need those taxes to feed, cloth and house the growing populations of the major cities, especially Sydney and Melbourne where so many people have moved to from overseas in the last 10 years. The mining boom is hurting the rest of the economy and must be taxed to both contain its growth and provide sustenance to the rest of Oz, especially since 83% of it is overseas owned.
It is therefore better to invest in companies with overseas projects (if one can stand the country risk), as their taxes are generally lower (for now) and labour costs are a fraction of our wages.
