CX Terminator Selects shouldn't cost much more than $70 a dozen in the first place ($79 per dozen at Bass Pro), so I don't know how hard you're getting your leg pulled...
Anyway, here's what I think about 'em. They are my favorite arrows but they are NOT all carbon. They are a carbon/fiberglass composite.
They are a lot tougher than any all-carbon arrow I've ever shot. I've done side by side destructive testing, shooting them and a few all-carbon arrows into various things -something I do not recommend others try because I don't want some idiot getting hurt and suing me

- and Terminators survived impacts that turned the all-carbons into shrapnel. They didn't fare too well on the 1/2" steel plate though, so they are not armor piercing.
The spine doesn't 'shoot out' with them nearly as fast it does with all-carbon.
Carbon arrows don't bend, but they do warp and lose straightness. Terminators retain their straightness far better.
Terminators' spine, weight, straightness and inside diameters are far more consistent, arrow to arrow and dozen to dozen. They are far superior to any all-carbon arrow in the same price range.
Weight... Since they are a carbon/glass composite, they are NOT light. This is either an advantage or disadvantage, depending on your point of view. Personally, I think it's an advantage because I like heavier arrows. I can get the weight I want without stuffing all kinds of weighting systems down the shaft, like I have to do with all-carbon arrows.
The camo clad Terminator Hunter Select 6075's I shoot are about equal in weight to XX75 2315's. The black ones are a bit lighter. So, if you are looking for maximum speed, this is not your arrow. If you are looking for an excellent hunting arrow that will give you best possible penetration, this IS your arrow.
Terminator Selects have the toughness and small diameter benefits of a carbon arrow with the weight and very nearly the same consistency of aluminum. That's why I like 'em so much.