There is a continuous flow of development and don't forget that the token 2.0 release soon will require MNE to purchase. Those MNE's will be burned so the total supply of coins will decrease which will drive the rate to a much higher level.
I would suggest to reserve some coins to acquire the new token once it gets released and spread over both for risk reduction.
Take a look at some of the recent ICO's, a lot of promises in the roadmap and whitepaper but most of those still need to proof if they can bring a vialable business model to the blockchain. Minereum is already releasing update after update and the development of the rate shows that even in this phase it's not easy to uphold a certain level of value. What will happen to all those ICO's when there first release does not meet expectation? Image what will happen if you hold any of those coins?
Minereum did not start with an ICO, is only 2 months old and is already moving ahead in development. That does say something right, agree?

Btw: Low supply often means a high volatile value development. Currently the whole market is down and will be until August 1. When Btc doesn't fork money will flow back quickly into the market and most Alts will see some big increases.

I'm really proud of Minereum community. Their Zeal makes the opportunists and the money grabbers using ICOs Pee and poop in their pants in fear of being left behind.