Since you already have the budget to be able to purchase Bitcoin, the you can do it anytime even if it is on a downfall or the rising part because Bitcoin price is that volatile and because of that, its price can change in any single moment of time added by the fact that ampjg the other existing cryptocurrencies, Bitcoin play the role of being the most potential cryptocurrency on my point of view. Since you have the money to afford buying Bitcoin, then it is now your chance to seek for the best exchange to put up your money and get into trading USD for BTC. This will serve as your starting point of platform to start up your journey getting into the world of cryptocurrencies. After doing such, it will also be good to see if you will like Altcoins as well but if not, it is already good to stick into Bitcoin itself just assure that you have chosen the best exchange of your preference and an online wallet or hardware wallet as well to store up your asset.