I heard thru the PM 'grapevine' that a single deck of refills MIGHT be offered.
Past history dictates that they might if you look at other tricks where refills are required and a single pack is offered e.g. Tornado.
So, hypothetically, if you can get a '3pack' for $39.95 (~$13.32per pack), the single pack should price out in the neighborhood of ~$20.00...if the darn thing ever becomes available.
Again, no availability for the singles yet.
Looking at these numbers, and seeing the quality and ease of performance for the effect, just order the '3 pack saver'.
Don't get caught without refills. Once they're gone, who knows when the gaffs will return to stock.
You aren't likely to regret it.