Bitcoin's value has surged dramatically, with current prices reaching approximately $90,000 per Bitcoin, a significant increase from earlier prices. Notably, the two pizzas purchased for 10,000 BTC in 2010 are now valued at nearly $1 billion. Additionally, a seller who declined a 50,000 BTC offer for an apartment in 2016 would have missed out on over $4.5 billion in value today. Prominent figures in the cryptocurrency space have expressed regret over past Bitcoin sales, with one investor estimating a loss of $3-$4 billion due to selling their holdings. These reflections highlight the growing sentiment among investors about the missed opportunities in Bitcoin investments.