Thanks again to everyone for the amazing info.
Well, we had a very busy weekend!
At the suggestion of some folks on and off the forums, we took some time looking at Class C mohos. We checked out Navions, Views, Isatas, Siestas, you name it. Ended up really liking the Siesta, price is right, liked the interior materials better than others, and the pop outs of course were great.
And... then we returned to the Airstream dealer to compare the C to the Interstate GTs... and fell back in love with the GTs.
We know the pros/cons of both the B and C classes.
So we ended up in the sales office and got a quote of about 13.5% off MSRP for the model we would order. We know now thanks to all of you that perhaps 20% is a more reasonable point to negotiate to. It was getting late, I knew we weren't going to negotiate more right then and there and that we needed to contact other dealers, so we left at that point (on great terms with the dealer).
We were hoping to maybe get a 2016, but were told by the dealer they stopped manufacturing those in May and I'm only finding our model/color/combo at a couple spots in the U.S., of course the farthest point away from California
Will also be calling some dealerships that have our model pre-owned (Mark - not ruling out yours in Chicago anymore!).
On another note, one of the Class C models we liked were ones that had two large twins in the back that could be converted to F/Q. They made a nice aisle in between so you're not climbing over one another. One model had the ability to pull up the back of the twin mattress, like you would a lounge chair, so you could sit up an watch TV. Husband totally dug that. Then we get in the AI GT with the double bed in back, and were able to figure out we could do the same thing. You just don't fold down the two side seats and you have a little aisle. If you don't lower the bed down all the way, you can sit back like a lounge chair. Happy husband
If you don't fold down the two seats, there is a bit of a gap between the back sofa and the seat, but we were sitting so far back you don't feel it. We think we could even sleep that way if need be so it's easy to get up to go to the bathroom in the middle of the night.