its an insider coin. either you are in the club or you dont make money.
is it still an insider coin if you can buy it on numerous public exchanges?
Making money:
Lets say you bought 1M Nxt a year ago.
You forged 24/7 for 1 whole year.
After 1 year, you would have forged 5'000 Nxt.
(which seems about right if we look at historic data)
Right now, this translates to
64 USD