There is a logic in OP statement, we do have some old inventions with limited supply and many of them have very good value on the market. I don't know will soft or hard fork do something about it, but for now limited supply is good for long term investments. It means a lot when we know that in future there will be no coins for everyone.
Everything is a risk, we get out from a house with a risk from getting hit from car or some meteorite to fall on our head. People who risk can gain some profit, others will wait for safe heaven.
Everything is a risk, we get out from a house with a risk from getting hit from car or some meteorite to fall on our head. People who risk can gain some profit, others will wait for safe heaven.
The limited supply is just one factor. The bitcoin has to adopt the new technologies and learn from the good points in other coins. Otherwise, people will use other coins such as Ethereum.
The price of ETH is not based on the price BTC. ETH is convertible to USD directly. Btc doesn't even have to be involved. Eth's value is independent of btc's. Your analogy is like saying Apple and Google don't compete with each other because sometimes their stock prices go up and down at the same time. It's ludicrous and factually wrong.
That is the function of the market price.