I think you've got the answer to your own question.
it's different when compare it with bitcoin
Don't just look at the growth of bitcoin without taking into account the risks it brings. Your home doesn't increase in value, but at least it's safe for you and real estate is considered the safest asset.
I think Maidak have got the right idea to it. Bitcoin might be a fine investment and you might be doing yourself a solid by taking up a Bitcoin investment but you must understand that what your doing is a high stake risk. You might win or lose. Not all to have come into this crypto industry have left with profit. Just enough people also have made others rich and in turn, they became the more broke.
Why, thy couldn't hold on, others invested in shit coins but in your case, it seems different as you are picking a Bitcoin investment but, having to sell an asset of value like the real estate, it doesn't seem like the best of ideas for me. I won't advice it!