Yep, I agree with that, same I guess with the G.S.T. and P.S.T. if you don't like paying them don't buy things where that tax is imposed. Income tax is the worst offender and also the hardest and most expensive to collect.
Though in some ways the GST is not so different from income tax since it applies to pretty well everything. As a result, it's no more avoidable than income tax really. The advantage with a resouce tax is that those products services that are less resource dependent will avoid much of that tax while those that are more resource dependent will be more heavily affected by it, as a result the true social cost of the product or service in question will be more apparent, and that way if you can find a way to recycle a resource you could reduce your tax burden significantly. With a wide-sweeping GST, that's harder to do.