I deal with some of the biggest e-waste recyclers in aust' and never once has there been even one mention of silver.
the little silver in e-waste is a by-product left over when they get the gold. platinum, palladium and copper.
Silver in electronics is very minimal, the only people that chase silver in electronics are those that want to recover it for their own hobby.
Gold is where it's at, the value of e-waste is determined by the gold content only.
Just take in a load of keyboards and see what they pay, they don't, they will charge you to recycle it

keyboard mylars are relatively simple to extract the silver but even when silver was $40 oz it's still not enough to bother.
I think people are confused by chinese whispers that is everything silver.
one guy says he got an ounce of silver from mylars, next guy says you can get heaps of silver from mylars, next guy puts up an article in a blog
and says oh man there's silver in mylars, the next blogger has this fantasy story in his head and say's that there's so much silver in electronics no wonder it's running out.
silver stackers read these blogs as if their gospel, and that's how the story always goes.
people want so much to believe silver's running out and there's so many uses for it.
it's not really true, the amount of silver in electronics or solar panels is so minimal it's simply not worth recovering on it's own.
If you want to make money from silver then paint yourself in it and stand still out front of a shopping centre, like marcel marceau, that's will get you some cash but if you believe silver will make you rich, hah! most likely you will never be rich as your forgetting what makes people rich from silver, mining it.