The reason i am collecting bitcoins is pretty feasible in this era: First of all you can trade them on website like www.btc-e.com and you can even trade them using metatrader to make profit. Secondly, you can send them instantly to anyone in the world with no restriction. Thirdly, you can use them for online shopping purposes as their acceptance is increasing world wide. last but not least, you can use them to play different bitcoin games with which you can double your btc.