What really matters is the exchange rate between ETH and BTC.
We all know that cryptocurrencies in general will rise to the moon.
Fair call nkmt! Also the following factors should be considered, as they have a huge impact on the cryptocurrencies:
Limited Supply and supply/demand.
Energy put in in the form of electricity to secure the blockchain.
Blockchain difficulty level.
The utility of the currency, and how easy it is to use and store.
Perceptions on its value by the public.
Price of Bitcoin.
Media.
Investors.
Scams.
Market dilution.
Innovation.
Confidence in traditional systems.
Legal/Governmental issues.
Hope that helps!