I prefer investing $1000 to $3000 because Bitcoin's value continues to increase over time, and now even the value per unit is more expensive than gold. Because of that, Bitcoin was nicknamed Digital Gold.
Bitcoin whose value is more expensive including the crypto currency class. Crypto currency is not just Bitcoin, but many others. For example Ethereum is getting support from various companies giants of the world, Litecoin that allows faster execution, and Ripple is considered more secure than Bitcoin.