I've looked through the forum and on the Government of Canada website but I can't locate an answer... That being said I'm pretty sure I'd still have to pay the 15% duty.
Scenario: If you travel to the US and bring a used pinball machine back into Canada yourself do you pay duty? What taxes are payable?
Answer as of Apr-2019:
Machines manufactured in Canada or US are duty free. Made in the US sticker/stamp will help.
1. 24 hrs in the US
First $200 in spending tax free and duty free
2. 48 hrs in the US
First $800 in spending tax free and duty free
3. Anything over $800 in value you will be charged remaining tax (and/or duty on if applicable).
Math Example: $1,800 in spending (machine) - $800 (tax free) = $1,000 remaining to be tax ---> $150 tax (15% HST)