Wholesale Miracle

Wholesale miracle, they called AA in 1955.
Wholesale, an odd modifier of miracle.
"Done on a large scale; extensive" as an adjective.
As a noun, "the selling of goods in large quantities
to be retailed by others." By use, a lower cost.
Well, that's true, for me with weight.
I've given hundreds of dollars to WW,
a few thousand to Metabolic,
and bunches of thousands to counselors.
But Twelve-Step programs are free, wholesale.
A wholesale miracle —
"surprising and welcome event
not explicable by natural or scientific laws,
the work of a divine agency."
Highly improbable or extraordinary,
bringing welcome consequences.
Yes, recovery is inexpensive, widespread,
an improbable event, worth fortunes
but all I need pay is surrender.