I would say invest in both. Though you'll be more secure in real estate because prices will surely rise and will not drop but the capital is so huge plus the returns is for long terms.
It is the beauty of bitcoin that it use to rise high if once it decrease then it is sure to see the price high someday but we will have to wait and let the red market to turn green again, it is good to choose bitcoin for you and not need to use more than one kind of investment as it is best choice and you will not have to make more investments if you have bitcoin you should be confident for the high amount of profit because it will grow so high.