I had considered this deal too.
if you buy 4 1 oz sunshine silver bars at today's price $25.29
And get 1 maple leaf free
you have 5oz of .9999 for $101.86
add shipping of 15 plus tax = $16.95
Total cost $118.11 for 5 oz or $23.62 per oz
Spot in CAD is about $21.94
Compare to buying 5 oz of "junk" maple leaf coins from J&M for @ $24.90 = $124.50 plus shipping of $16.95
you would get $141.45 for the same amount of silver.
Now the maple leaf coins are 25.96, but if the SMAPLE code works, you would get a super deal.
I contacted CIBC and they say the offer is valid as long as the ad is on the site.