Every row is priced as a one time payment for a specific quantity. There are no recurring charges on product orders. The monthly tiers are limited to the API and Managed Campaigns Annual product. Every price includes the warranty by default. Delivery windows are the shipment SLA, not the refill SLA (refills are separate and run silently).
Geographic tiers (USA, EU) carry a premium over Global because the source pool for those tiers is smaller and more filtered. The premium runs about 70 percent above Global on the per unit price. If your audience is global or unclear, the Global tier is usually the right default.
Drip windows are the default distribution pattern. You can override to instant at checkout if you want the speedrun, but for anything larger than 1,000 units we strongly recommend the drip because the arrival curve is what separates bought looking from organic looking in the X algorithm.