As much as it pains me to say this as a BTC holder, I think anything you can reasonably purchase now for Bitcoin, you should.
I'd probably think now's the time to also buy FUN if it's at a low enough price, if you expect it to hold as well or better than BTC.
Unfortunately it is not so simple when we talk about FUN case. The price might be low in $, but price of BTC is low too and it makes the whole calculations not so simple. Today token costs 38 sat, not so long time ago, it was 35; 10% change. I just do not feel TODAY is a good moment to buy, when few days ago it was “a lot” cheaper.
Just a small price increase on BTC and token will become (the most probably) cheaper again.
Today you are right, but it's hard to make such assumptions precisely, because let's say bitcoin crashes more yet, then we would think we should have bought FUN for 38 satoshis and we would consider it a cheap price, as the more btc loses value, the more expensive the quotation between FUN and bitcoin becomes.
After all we have to make a choice without knowing what is going to happen next in crypto market. It can always be a good or bad move, and we never know until we finally face the consequences of our actions.