There are some claims that this is a blatant Ponzi scheme on Reddit:
https://www.reddit.com/r/ethereum/comments/7kz83v/etheremon_a_pokemon_version_of_cryptokitties_just/drijss9/

Cardano is super interesting. There are a lot of good people working on it and they have got some serious research and time put into developing it so far. It's definitely one of the new cryptocurrencies to watch. There's a reason it has exploded in the last couple weeks.

There are a ton of better alternatives to Bitcoin out there. Don't be so short-sighted that just because it has the first mover advantage that it will win. Many others with a first mover advantaged have come and gone, just look at social media.

I think in 20 years the top 10 cryptocurrencies may be completely different from what we see today. It's going to happen faster now that the market is flooding with new teams working on new innovations. It's not like 2008 - 2013 where there were literally no other real players around.