I have decided to replace the canon 18-55 kit lens (older non IS) and have decided on the Tamron 17-50 non VC. My question now is whether to spend the extra 100-130 bucks and buy it new. There is currently a 45.00 mail-in rebate which helps keep it closer to the used prices. Any thoughts on if it is a better idea to buy this lens new or save the money and pick up a used copy? Thanks for any advice you may have.



