3) Alt coins could become very similar to BTC, and can be easily created
This is precisely why BTC has ZERO INTRINSIC VALUE.
people often say that BTC is valuable because I can transfer and spend it in ways that other currencies don't offer, however nothing is preventing me from making an ALTCHAIN and providing this same exact intrinsic value for presumably any price.
A couple of things to consider.
Bitcoin is a brand, and a valuable one.
Satoshi said bitcoin is a collectible. I think there is some intrinsic value there.
There are a lot of altcokes but Coca Cola can still charge a premium.