It is not strange to see people bought Horizen coin like this, because the coin is a good one, good in its technical innovation, and in its strong communities.
Whatever coins you have intention to invest, let's pay your attention on their communities. If they have big and solid communites (not mostly cheaters and scammers), and have continous real, meaningful events, you should spend money to invest. Horizen, fortunately, satisfies both two requirements (in my opinion), that are technical innovation and strong communites. So, let's step in.