I have two altcoins which I intend to hold for that period of time.
They are ethereum and deeponion.
I see great potential on these two coins, I know they will truly be worth something in the years to come.
Especially with DeepOnion because even though it is still on its early development stage, the amount of support it gets from the community is truly astounding.
Added to that is the work being given by the devs in developing the coin.
Cheesy