I also purposely chose to neither get the Tali-Whacker nor the AIr Rescue.
Even though some of my Busse knives are doubtless quite collectible, I buy them to use. My SRKW Battle Rat seemed similar enough--and better suited to my (varied outdoor use) needs than the Tali-Whacker. My Satin Jack (recurved variant, with spine serrations), my (incoming) INFI Bandicoot, and my (incoming) Pepper Shaker cover my small knife needs better the Air Rescue looks like it would.
If I was to (blindly) hypothesize about why the Tali Whacker generated more interest than the Air Rescue:
1) The sale of the Air Rescue was only announced a couple hours in advance; the sale of the Tali Whacker was announced a couple days in advance; thus, more people were aware of the sale of the Tali Whacker.
2) While the Air Rescue is a rarer blade, it's perhaps a less rare kind of blade. Lots of rare small Busse knives have been sold, but no other SR101 steel Busse knives have been sold. This might have been more compelling for collectors.
3) Jerry indicated that there might be more Air Rescues available in the future, but indicated that this was it, forever, with the Tali Whackers.
4) Lots of folks think big tanto knives are cool.
5) Some folks don't like serrations.
--Mike