i think if we want to buy bitcoin, we need to wait for the correction price like before so we can buy bitcoin with cheap than now. but for now, we need to waited for a while before the price is down, i think we can trade altcoin with bitcoin first if we still have stock of bitcoin in our wallet so we can grow our bitcoin before we buy back.
It's always the question if there will be a correction.
Maybe you will never get bitcoin as cheap as today. But personally i think that a correction is likely to happen.
Anyway, if bitcoin is not an investment but used as a form of payment, every time is the right time to buy.