I recently started, looking into getting back into it, so I bought my son his first metal detector. During my search for coin collecting I came across Numis Network. It's a new company thats about helping people gain wealth by collecting coins. I think this would be great for getting back into metal detecting. I can teach my son about coins, and show him how, his wealth grows, and maybe when he's eight I'll let him cash some in!
Numis, I believe lets you earn income through a MLM platform. Introduce people to the program, and earn. Remember a coins value is long lasting, so it's the perfect thing to collect. for more information please check out their site Numis Network.