How many dollars is a big one?

Excuse me, could you please clarify what you mean by "a big one" in the context of cryptocurrency or finance? Are you referring to a specific cryptocurrency, such as Bitcoin, Ethereum, or another altcoin, and wondering about its value in dollars? Or are you asking about a large financial transaction or investment, and how much it might be worth in dollar terms? Without more context, it's difficult to give a precise answer, but I'd be happy to provide more information if you could elaborate on your question.