You are not asking whether ads work. You are bleeding because creative dies faster than you can replace it. Ad performance decays in days, not weeks, and by the time you have briefed a new batch, the current one has already spiked your CPA. The account is not broken. The creative pipeline is.
Traditional production cannot keep up with that clock. Brief, shoot, edit, wait a week or two, pay hundreds per asset, and you get two or three pieces right as the last batch fatigues. Meanwhile the teams winning on paid social are running fifteen to twenty-five active variants per campaign and refreshing constantly. Volume is the moat.
A subscription is the literal fix. Fresh hooks and variants land on a cadence, you test, the winners scale, and CPA stays sane instead of climbing every two weeks. The brands that treat creative as a steady pipeline instead of a periodic project are the ones whose numbers hold.