That is an interesting way to look at that. Your day job pays you cash I'm assuming? Which you in turn "invest" in crypto?
Those holding cash and stocks (what you seem to be referring to as "money") are going to wake up to a real surprise someday soon...
Yes, of course. I'm not a doomsday type of person in regards to fiat, but I still see crypto currencies as more worthwhile than something like gold. "Money" is any resource that you can sustain yourself with and trade for goods and services. "Investment" is anything that has the potential to increase your resources and thus your buying power.
I only invest an amount of resources that I can live without, and I only invest in something that I believe has a bigger upside than downside. At worst I can lose my 2 BTC investment in MEC, that I can earn back in a week. At best I can increase my buying power 1000 fold. Easy decision. I'm holding as long as I see the upside in MEC, and it's bigger than the possible downside. If MEC becomes accepted and enough shops open up so I can sustain myself with it, I never have to sell my MEC.. only trade with it.
I don't invest in fiat currencies, 'cause the upside is abysmal - and possible downside huge. I do trade with them though, but only because I have to.
Day trading is a different story, but I don't really do that.