I don't completely agree with you, according to me Monero(XMR) is booming and is having a greater potential than ethereum. You didn't state a reason why ethereum might be 1000 times its value.
Monero mining cannot be done using ASICs which is really a big advantage for Low spec PC user. This has become an option for people with low hashrates to mine Cryptocurrency.
RE: the best cryptocurrency to invest now "not bitcoin"