Buy $50 every Friday and you automatically buy more bitcoin when prices fall and less when they rise. Over full market cycles DCA rarely beats a lucky lump sum — but nobody gets the lucky lump sum reliably, and DCA is the strategy people actually stick with through crashes.
Fees decide where to DCA: recurring-buy fees range from zero (
River) to ~1.5% (convenience apps). Over a decade of weekly buys, that gap compounds into a meaningful pile of sats.