Very interesting article, indeed.
I agree that zero is a long term investment, as it is still in its infancy.
There will be ups and downs, especially as long there is the monopoly of Cryptopia and as long as thanks to relative low volume big whales are able to manipulate the price.
My personal opinion is that a $10 price for a privacy coin with a 2.3 mil circulating supply and a low inflation, has the potential to reach $100 provided that the right measures are taken.
It looks like privacy will be the centerfold of attention for all altcoins this year, and zero has a hardcoded advantage.

I am not a financial advisor though nor an expert or a tech-guy so please take my words with precaution and do your own proper research, the same way that proper research is needed when investing in anything and especially altcoins.