I wanted to get loans initially at first but it all depends on your financial situation and getting a compeititve APR.
Do you have good credit score? Do you have assets or collateral? Have you loaned money before? These are all factors
Overall if you are the average person you would get an APR rate of 20% which is definetely worth taking out a loan for to invest in bitcoin since you can probably get that return in a week if you are good.