How are u gonna get cheaper altcom if BTC rises another 2000$ and let's say AltCom price stays around 30k sat price, not caring what the dollar price is, you would not earn exra AltCom you'll just be buying back in for the same amount of satoshi's u sold them for
When BTC rises, alt coins drop (ALTCOM fell already 15% from where I sold and is no longer around 30K sat). So, move your money to BTC, wait for the rise to top out (probably around $12K or $13K) and sell those BTC for fiat. IMO, BTC will fall back to around $8000. Then buy back into BTC and with those, buy back ALTCOM.
A lot of people don't directly buy back into alts when BTC falls sharply, they get scared and usually sell for fiat or HODL. Only once BTC stays roughly around the same range, people are comfortable buying into alts. So, if I am right and BTC shoots up a bit still and then falls sharply, ALTCOM will not rise with the fall of BTC, but stay low. I expect this to go until January, so in February alts should have another chance.