Bitcoin has achieved its goal a long time ago when it went from $1 to $100.
Do you think the goal of Bitcoin about the price? I don't think it is the goal of Bitcoin created by Satoshi. Satoshi created Bitcoin for an alternative of payment purpose that never uses the third parties. So, we can transfer it any time and with low fees. This is the real goal of Bitcoin written in the whitepaper of Bitcoin.
The main goal is that to use as a payment method and also a transaction as you mentioned that it has been written on whitepaper .Though it was the reason to bring it but it has opened the world to make a easy transaction system and the technology is the is the great innovation itself .We have gotten a huge platform and we all know that what is bitcoin and crypto for us .Not only a transaction system it has opened the idea of different earning way .It shows how smart the blockchain technology is .The crypto market is growing more faster and the using of the bitcoin are increasing daily .The price are just following it and the value is increasing .I think the idea has been successful and has archived the goal and also many more will come through it for sure .