I already put through a new order last night. From a place that also sells janitorial and food services equipment no less. And got a very quick refund from the original store too. Fingers crossed it ships within a couple of days. They say it's still in stock and my order is "processing."
And WRT digital audio, no, it won't be a problem. This system will pretty much live its life serving content and won't be itself connected to anything but network (occasionally) and power.