Recurring, without the admin
One-off sales mean starting from zero each month. A membership means the month begins with money already arriving, and nobody has to be chased for it.

Three mugs grouped on a wooden table
Set the price and the cycle; renewals happen without you.
It opens when they join and closes when they stop. No spreadsheet.
Members cancel themselves, which is the reason they feel safe joining.
Memberships are included from the Starter plan up.