Yes recent bitcoin price is increasing a lot especially since the month of October 2023 Bitcoin price is continuously increasing. You can start investing in your bitcoins with any amount you want, it's totally up to you whether you want to invest or not.The dollar amount you mentioned is not low but recently bitcoin price has increased much more than before so if you had invested earlier you would have got a small profit from here.Also, if you start with $250 in Bitcoins at the beginning and it gradually adds up to your Bitcoin dollars every week or month, then this is another important investment method for you.