For me, I believe bitcoin will play a significant part of the financial system in the future. I just don't want to miss the boat.

Sure, maybe another 100 times increase is unlikely, but 10 fold is quite possible. It'll be great if bitcoin will be part of the banking system and transferring money will be cheap and hassle-free. Bitcoin can be an universal currency for internet and for travelling. If we have another financial crisis, I wonder how far bitcoin will go.

So, I have set aside a fixed amount of money to try to buy bitcoin periodically. I have a limit order a few dollars away from the market price and I wait for bitfinex to send me a fill email then I'll place another order.

What other strategies do you use and why do you buy bitcoin? Do you want to grow bitcoins and believe in its potential or are you just trading it to make a quick killing?

Update: Maximiser is part of my strategy to accumulate bitcoin when I don't want to guess the direction of the market.
http://www.coindesk.com/coinarch-brings-investment-banking-products-bitcoin/