Oh, heh, I have an afghan that my grandmother crocheted for me when I was little, out of RH (or something very like it, anyway), and while it's quite pretty (she used an off-white, with a blue-to-lavender variegated edging) and I appreciate all the work that went into it, I never let it touch my skin - it only ever goes on top of the other blankets for looks/warmth. I don't use it as a throw or wrap ever, because it feels so awful (and that's after at least 20 years of consistent use and plenty of washes). I can't imagine handling the yarn long enough to actually make the afghan. Cheap acrylics may be cheap, but there are plenty of other fibers that are inexpensive and handle much more nicely (and you can always do a very open and airy pattern or use bulky yarn and big needles/hooks).
When people ardently defend their use of RH and such, it always feels like they're somehow proud of being "anti-snobs" to the point of acting just as superior as they claim "yarn snobs" do. I don't care what you knit with, as long as whomever you're knitting for is happy with it. But if you ask my opinion, I'll suggest you use something, anything else.

(And yeah, the super-expensive fibers that are expensive because they're rare and hard to harvest? I can't afford them, but they're not really overpriced. Muskoxen are fucking HUGE.)