Re: Is it a good long term investment to buy 1 BTC today?

I would suggest you to buy something like 5 bitcoins when the Bitcoin price is 280 USD, and sell 4 of the coins when the price is around 350 USD,
5 X 280 = 1400
4 X 350 = 1400
so you will get 1 btc free of cost.

Your calculations are fine so far.
The only thing you have to do right now it to wait for the price to decrease.
But how do you know it will go down that much?

I dont want you to stick to the prices that I have mentioned, just buy it when you are able to and sell it at a good price and earn like 0.5 to 1 btc as a profit.

I will add:

You buy @ 350 suddenly the price went down to 320. No worries just hold. No big losses since no can turn down much price today. Read speculations and learn to read charts. Buy @ 320. Price booms @ 350. Matter of you if you sell it. Price booms to lets say 360-370 and you see no further movement from that. Now sell those you buy @ 350. Of course dont stick with my suggested price. Its just a scenario that if you buy at high*, dont regret and keep going on. You can cover the loss I will swear with the proper analyzation and move.