I feel awfully good about getting my 20hz native tuned (15hz with plug) passive 2011 Captivator plus brand new EP4000 for $1275 delivered (this includes shipping costs) back at the beginning of the year! That doesn't include a HPF.
I think the air movement action of the Cap is being overblown, pun intended. I don't care how much air is being blown, that's not the point and it seems like this was significantly overstated. Although it does indicate lots of displacement, that effect really doesn't benefit a HT experience as much as people are making it out to. A sealed sub never does this, since there is no port from which to exhaust air, yet the sealed experience can be just as "tactile" in reality. I do feel some air movement even off-axis from my Cap's ports in big scenes, but it's rare that this air movement matches the director's intent in a big bass scene. I could see if it was always a huge explosion, or building demolition, or a hurricane or something, but it's simply not always appropo. Thus my assessment that, while "neat," this facet of the Captivator's performance is not useful in ascertaining the value of the sub.
Further, as to Council's take on the port chuffing, I simply cannot get my Cap to make port chuffing noises. It also never bottoms at or above tuning, in either 15hz or 20hz modes, even up to amp clipping. Below tuning (since I don't use a HPF), I can hear the driver doing a little "flapping" but never any clicking, banging, or scraping. To be quite frank, and probably because of the low volume I listen at (-25MV at most, which results in no clipping but 110db from the WOTW Pod Emergence scene at my LP [8-9ft from the driver] in a 3300+ cube room), this essentially never happens in HT scenarios. I can get it to do so on test tones. From 10-13hz the Cap flaps a lot at every volume level. At 14hz the flapping nearly dissipates, and at 15hz there is no flapping present at all. Nothing but clean, deep bass that I can easily hear. Because I'm not interested in damaging my sub, I haven't done this but a couple of times.