First off, I pretty much hate AHB. I think their prices are high and that Forrest has a "love it or leave it" attitude that I cant stand. I'm not saying that a business such as his doesnt have a bottom line, which I understand, but when I sent him an email addressing my concerns he didnt seem to give a ****. I refuse to purchase ANYTHING from AHS. Hell, I'd have a problem looting their store after the apocalypse just based on general principle...
...HOWEVER, based on my experience shipping a couple things for buyers on CL, I'd say that 30 bones for 2 boxes of stuff, depending on weight and dimension of course, is probably in the ballpark.
So yes, I'm backing up AHS on this one. While the shipping on your 2 boxes MAY NOT have cost Forrest excatly $30 (remember that Forrest said "on average") I'd still wager a months pay that you got a darn good deal on your shipping.
Again, I all but hate AHS, but I wont let my bias stand in the way of the facts.