So if you have 1BTC now, what coin or coins you will invest your 1BTC? Will you invest it to a single altcoin?
In my case I'll invest it to my 5 favorite coins equally.
$STRAT, $ETC, $SYS, $DCR, $TIME
How about you?
I would suggest you to spent half the bitcoin in coins and keep the remaining half with you in your wallet. Why you wana spent everything. Keeping some bitcoins in your wallets always seems good and price will increase surely as time passes on.