He told me he already had the 35L but based on his research he knew it was a must buy lens.

Kind of silly if he already has a 35L. Pretty much the same thing. Used 35L going for about $1k now. He'd get $200-$250 at most in that "downgrade". And it's not like the Canon will lose much value in the future, even if it's replaced. Did you give him the receipt for the 5-year warranty?








