Why Bitcoin? If you are thinking of investing go for Zetacoin, it's going to blow up in the next few months and is x1000 cheaper than Bitcoin. The best part? ZET is x20 faster than Bitcoin and is being used as a mobile payment method right now (they have a super-fast app on Google Play). The payment app on Google Play will come pre-installed on all new smart-phone 2015/16 bought around Africa (lead developers in Kenya right now working on the small details). You can get Zetacoin via the major exchanges Cryptsy/Mintpal/Bter. Do an article about Zetacoin, I'm surprised how little PR they have!