That totally depends on you and what you consider worth collecting. It sounds to me like you're more interested in the cash value in the coins vs the intrinsic value. They're probably not worth that much, but I love errors so I'd say absolutely worth collecting. If you disagree, I'll be happy to supply my mailing address.
I consider it to be investing in retirement and my son's future, we can't take it with us...That's why value is important to me.