~snip~
Well, its your choice anyway if you want to borrow money for the sake that your gonna use it to buy Bitcoin then hold for the long term.
I don't see any problem with that if you have a good vision about it. But if your not deeply knowledgeable about in Bitcoin, I suggest borrowing money for this is not a good financial advice in my own opinion only.
Im quite sure the OP had enough knowledge about Bitcoin since he knew how much Bitcoin have been increasing from a few months ago. Also, when you're investing your due diligence is the most important step before putting away your money.
Borrowing money to invest in a highly volatile asset isn't always advisable and is not a good financial advice as it will contradict the most basic rule of investment "invest what you can afford to lose."
However, there are some exemption from people who are willing to take the biggest financial risk in their lives.
Now, I don't really recommend to have a loan just to invest in Bitcoin, but If you're eager to buy in bulk, just make sure you're making enough money to pay for your loan's term.
Another option would be, to accumulate gradually, fraction by fraction everytime you make money instead of using that money to pay for the loan. In this method you will be able to save yourself from interest fees and possible charges in case you missed your due.