first time posting in speculation, many interesting predictions here lol.
but i voted hold, as I'm not too concerned with the price swings at this point in time (although i would love to see them higher obviously). i believe bitcoin is just entering it's first real growth stage, as so much investment capital is being poured into startups, potential ETF looming, large companies accepting btc, and a continually improving user experience to buy/sell/store/manage btc. i've invested money i can afford to lose, and intend to hold my btc in cold storage for at least a few years, unless there becomes a critical reason to abandon hope.