There's also lots of hype from people reassuring everyone that the coins they just happen to have invested in are rock solid, with nothing to back their arguments up.
In my opinion none of the coins I mentioned is rock solid, but I have researched lots of coins, and currently these are the ones which I find most valuable compared to market cap. 3 years ago I made a very good bet with Ripple (almost exclusively invested in Ripple for 3 years, and achieved more than 30x returns), now we will see.