I guess what's missing here is the amount of time you are ready to invest and ev. to loose...
Time for trading, time for looking at the nice curved up's and down's, time for exchanging the currencies and of course the time you want to invest, park your money and wait....
If you can afford to lose your time on this thinks (like I do) it's worth, as I'm sure in ca. 3 years all of the coins, even the most stupid will increase. So this is a quite important aspect in the equation. For me in any case :-)