Say you had as an example 50k usd in bitcoin, how would you invest it in a serious way to grow your wealth long term? Would you hold in coins, P2P lending etc or rather would you cash it and buy company shares or something?
I can only speak for myself, but at the moment, i would hold the bitcoin itself... I seriously hope the current price increase isn't losing momentum...
About the other options: trading and holding altcoins is rather profitable if you know what you're doing AND if you're lucky. I've tried P2P lending and had a net loss of over 30%. Cashing out and investing in shares is offcourse allways possible but has little to do with bitcoin.