[wcarron]

Wouldn't that indicate that you are missing out on a significant portion of your market? Maybe I'm misunderstanding what 'completely cannibalized'means but, personally, I'd probably follow the money; because that's where your market seems to be. Subscriptions can be good, especially if your product is sticky, but why ignore the demand for single orders?

Perhaps having packs of 10/25/50 is a viable road. After all, what's so different about sending out kits monthly to a subscriber vs sending one out to someone who purchased a month supply as a test?