You said an investor which means you already own an investment and you now want to diversify, for me i'll prefer you buy bitcoin even though building a hotel and use the proceeds to invest in bitcoin may sound like a good idea but owning a standard hotel right now is gonna cost you a lot coupled with the stress of running, securing and maintaining a hotel is very expensive whereas if you diversify into bitcoin you don't need any maintenance apart from if you decides to buy from time to time after you have lump sum your capital in it, all you need is just to secure your asset and since you are already an investor it means you can take very good care of immediate things with your income which will give you an ease over your investment in bitcoin without stress.

 I have a close relative who owns a big hotel in my City and i know the kind of stress he gets from running his hotel but it's not like owning a hotel is not a good business but the stress is just too much and at first you will made good money from it but when some facilities starts getting old and needs more maintenance that's when it becomes so tiring as the more you are making money from it, the more you are spending to keep it in good quality just to still attract more customers..