Thanks @cryptogopher! Interesting thought. For myself I decided to really stick to my rules. Basically the only way a 'small coin' would end up in my Play Money segment would be if I believe it would outperform my core segment in the short run. That is also the way I contain myself, otherwise I might buy all the coins just not to miss out ;-) When I am not certain about a coin, or when might be a possible moment it would become much more valuable for instance looking at their roadmap, I just don't buy. That why I also included the max 10 coins rule in this segment, to force myself to ask the question: 'Which coin should I sell and why in order to make room for this small uncertain coin?'