Yeah, and they definitely offer another depository scheme where you can passively multiply bitcoins. The way a centralized wallet works is always as profitable as it sounds (sounds like you fell in love with it). A fully decentralized, security-oriented wallet has never offered anything like this, or even talked about a future price.

From the rate of return they offer, they're actually managing the bitcoins you deposit (or you can call it "holding") in a way they won't explain. They risk your money on the businesses they're involved in.