the most basic lesson is of course economic. and when learning it people become better investors of even good assets
so here it is
no matter the investment product, always look for the underlying cost of production of the asset and find the cheapest most efficient cost on the planet of creating/acquiring it.
for instance bitcoin has a mining cost thats averaging $60k/btc at the most efficient mining pool on planet
then compare that to ethereum which calculating the validators cpu total cost is only $50 per eth
-cut-
I understand what you are saying, but imho that argument would backfire.
Starting from the fact that you didn't include the supply difference, but compared the mining cost to one full coin against one full coin, which isn't a relevant comparison. That would instantly give a feeling that you are purposely misleading people, even though i am sure that was a small accident in accuracy.
Also what people would basically hear in that is: "So you are saying that bitcoin is wasting 1000x more energy resources? For the same job eth is doing by being so much more energy efficient? And that need for those energy resources would need to rise indefinitely if we want to keep the price up?"
Then it would come to future and sustainability of that rise and energy, because at some point, if bitcoin keeps existing, there will be need for some radical energy reforms. And those alone would drop the cost of mining. That is if mining and trading just isn't banned. Even if you can't ban it on protocol level, with the upcoming new AML laws it wouldn't be impossible to make trading of it useless, because you would need to provide source of the money.
Your argument is like saying, that you should invest in oil, because oil is finite and people pay for gas. And because oil is finite, gas prices will keep rising, ignoring the fact that people hate when gas prices are up and are constantly looking for more green and cheaper options.
To summarize my point: BTC holder sees this as price projection chart:
How do you think rest of the world sees it?