you have a grand to spend and then you're off to a desert island with no contact from the outside world for five years.
which coins will still be alive by then and which will be thriving? as i'm on the conservative end of things i'd only go for bitcoin myself. in half a decade an insane amount will have changed.
what about you?
I seem to agree with you that bitcoin is the right choice for the long term. But if I have to diversify, I choose Ethereum in second place, and NEO is in third place. I think five years is a very long time, and I believe with the coins.