I own about .7 BTC. Should I blow my bonus to get me to an even 1 BTC?

My bonus will be about $20K this year - about enough to get me to 1BTC (I know that they take a bunch of tax from bonuses but I can also add some savings). The alternative is to invest it in brokerage/retirement accounts.

On one hand, it would be really desirable to have exactly 1 BTC. On the other hand, things are feeling really uncertain regarding bitcoin’s future. what would you do? For context, I’m 48 yrs old. I am doing well financially but could always do better, especially because I’m an older dad (I have a 2 yr old) and want to be sure my son is well provided for. My net worth is maybe 350K-400K right now, not including the value of my business, which I may be able to sell one day.