I like the idea forging as business. But still don't undestrand why average person buying a 100000 NXT will not be able to forge.
Mining made bitcoin so famous, because people can do something for the idea at home and earn real money.
What I'm missing?
Maybe you're missing the fact there's many things you can do for the idea at home and earn value. Promotion, development, trading, third party services, etc.
It's important to start changing the mining=forging mentality, and the mining paradigm itself. It will be obsolete soon. The real new paradigm for adoption should rather be something like
proof of learning, while proof of stake is a way of securing the network, not an easy buck.