Because we hold the inventory ourselves. Every product ships from our own warehouse at 5055 Carrollton Pike, Suite C, Woodlawn, Virginia, so an in-stock status describes a physical shelf rather than a distributor's feed that a dropshipper is passing through unchecked.
A dropshipping retailer lists a distributor's catalog and only discovers a stock problem when it tries to place your order. That is why "in stock" on some sites means "was in stock at the supplier when the feed last ran".
Every order is picked and packed by us at 5055 Carrollton Pike, Suite C, Woodlawn, Virginia, and goes out by USPS. We do not dropship, so nothing you order is forwarded to a third party to fulfill.
No system is perfect. Two people can order the last item within a minute of each other, and a miscount can happen in any warehouse. When it does, we tell you and sort it out rather than sitting on the order.
Our contact page reaches the building, so you are not chasing an intermediary.
For a time-critical purchase, call before ordering. Someone can check the shelf.
See in-stock versus backordered for how we describe items we do not currently hold.