It is never too late to buy bitcoin. A lot of crypto influencers predict that bitcoin will be at $50k, $100k or even more. Whereas it is not the same for eth because of competitor like eos. So it is never too late to buy bitcoin.
I have the same thought as yours, it's never too late for anything and it's still better to do things a little bit late than to do nothing. Moreover, bitcoin stands a great chance of growing more rapidly and becoming the most widely used currency so don't hesitate to get yourself some bitcoin now, or else you might regret later.