Compare the angle that goes from $85 to the $1163 peak then the angle that goes from $152 to the current ATH peak. You can do it yourself in bitcoinwisdom.com thanks to the nice lines it has. Now you will see that the current rise is very reasoanble and we are not still yet in bubble territory.
Bitcoin marketcap is still tiny, if real big pockets jump in we would see $10,000 in no time, then you can consider that a bubble.
That's why it's important to see the ETF get approved this month. Big players are waiting for a professional platform that allows them to open up positions into Bitcoin.
Of course they don't actually own the coins if they buy themselves into the ETF, but that's most likely not a big deal for them as they only look for the security that the SEC provides them with.
Can you imagine seeing on the news that pension funds allocate 1 or 2% of their portfolio purely for Bitcoin? If things go well in that matter, then we'll even leave $10,000 far behind.