If you spent bitcoin at $120 expect $120 worth back, key word here is spent. I'd love to sell a oz of gold for $1200 and go back next week when it's $1500 and ask for it back. Come on people you spent it you didn't hold it.
I'd love for you to come buy my broken laptop that I can't find for 1 bitcoin, and when you come back to get your bitcoin because I can't deliver my broken laptop, I only give you half back because it has doubled in value versus russian rubles...
Edit: PS, I actually have a broken laptop laying around here somewhere if you want to buy it.