For example,
1. Buy $1,000 worth of SiaCoin at 0.00000353 BTC
2. Buy $1,000 worth of Etherium at 0.08974848 BTC
Why do you chose one over the other?
If that's your main deciding factor you might as well just flip a coin; price absolutely doesn't matter.
For speculating, I like to earn %, so I like coins that are churning a lot.
For investing, I like a coin where I can own a large % of the market cap. For instance, if you own 1% of some crap coin and it hits a $billion dollar cap someday, then you own 1% of a $billion dollars.
Most of those crap coins that you can easily own 1% will likely end up in the shitter so what you're simply saying is that you prefer very high risk high reward coins.
That doesn't mean you can earn more with them long term than with a stable coin going 2x.