Just send them in stacks of 10 bitcoins (if 10 is too big then do with 1 bitcoin but not less than that) in your cold storage and forget about those(but save the seed and password of your cold storage in a safe place) and after many years you will thank me that i gave you this advice.
pretty sweet advise, then you wouldn't need to worry about the volatility of bitcoin and how price might drop, increase, whatever.
He is means HOLD your coins on cold wallet(maybe paper wallet) and wait until many years means because he's know supply < demans = price high. good advice i think for who Bitcoin will be success.
https://en.bitcoin.it/wiki/Cold_storage
paper wallet is one of cold storage/wallet. i think use paper wallet as cold wallet is the best idea for who want to keep bitcoin for long term and it's cheap.
Its the setup process for me is the pain.
Like how do I know which site is legit, and wont copy my passphrase or pin and then seeing my 30 btc deposit disappear.