In reply to PeteDP:
The problem with buying in the US is that you generally need to have proof of address, and be able to get the registration documents sent there. So unless you have friends/family in the US, you're probably better off buying in Canada. Not sure about scrapping/selling in the US though.
As for climbing... well, you can't go wrong in the Western US, particularly if you like to climb granite. Summer is a good season for the Washington Cascades, Index, City of Rocks, Sawtooths, Tetons, Wind Rivers, Rocky Mountain NP, Vedauwoo, Tahoe, High Sierra, Needles, etc etc...
