The more people own and user Ethereum, the higher the value of Ethereum. More adoption can increase the value more.
nah, adoption has nothing to do with value appreciation. sry.
Adoption means usefulness of the coin. If it is used more, the value will increase. This has happened to Bitcoin.
yea this is going to be as valuable as candycrush or whatever other MMORPG credit tokens, still not interested, sry.
bitcoin has intrinsic value, for all the computational power and electric consumption it requires, not to mention the TRUST in its network.
Honeybadger do the rest, mainstream adoption or not.
Similar to Bitcoin, Ethereum is also supported by the Proof of power at the moment. I will it can be mined for longer.