I think this bubble could possibly go over $1k, as it's just getting started. I don't suspect that either BTC or LTC will work well as daily currencies, at least for some time to come. They are simply too volatile. Maybe LTCs faster block processing will create some stability, but I have my doubts that BTC and LTC are different enough. I think it would be interesting to see a similar cryptocurrency that had a much faster half rate. Both BTC and LTC are 4 years. I'm not sure that the price can settle until most of the coins have been mined. I've decided to hold onto my BTC for at least one more halving, or until after 2018. Five more years should better settle the question of its future. I bought them right after the first halving. I don't think I have a live-changing amount, but it could be a chunk of retirement. I'll probably buy some LTC once Coinbase enables it. I don't feel like going through the trouble of using another exchange.