I personally got lucky and got in just at the tail end and had some fun with boxes for ag. I grew tired of skunk after skunk, but I agree with Mr Riley "it's out there" But for me I have to weigh what my time was worth and what I was making on doing boxes CRHing...not even close to cover gas. So I just stack. But I have come to enjoy the relaxing hand search for copper and wheats, with a soldering stand magnifying glass...Winners in every roll!!! Here is my take.
1. Pennies satisfies the need for the "hunt" in me if you know what I mean.
2. Every pre- 82' penny i save i just doubled my money (I separate 82's by them selves that i'm pretty sure are copper to weigh to confirm if 97% copper)
3. I, like a lot of folks believe that in 20 years it's quite possible we will look back on this time very much in the same way we now look back on those early coin roll hunters. They found 5-10 in each roll but it was only worth 11-15 cents and for those that didn't have a lot of means couldn't tie up 5-10 dimes out of each roll for the next 50 years. And yes silver is more precious but it's always been gold, silver, copper.
4. The facts show any logical thinking person that bothers to look, Gold and Silver prices are manipulated and suppressed. There is a ton of evidence and thought by industry respected individuals and even some in the mainstream are starting to toot the horn (the gig is about up) aka wall street journal, fox etc but yellow journalism still runs rampant but I digress. So i can only assume the same is in place for copper

Yes complete different uses and i don't think it will ever be any where close in price....but. There are certain individuals and researchers that have said that they think it is quite possible silver might actually be more precious the gold...and it's more useful, but that's for another post.
Best of luck!