This is such an interesting question--I was wondering the same thing.
I wonder what the response had been if we had all read in the blog this week that increased challenges in the development process had forced Sideshow to increase the price to $450. How would our reaction have compared to what happened today?
I have to think that most people would have been absolutely livid and Sideshow would be faced with more cancellations than they might be getting now. I wonder if the on again/off again delay with Fett has anything to do with the change to ABS. Maybe this decision saved it from a long term production nightmare. Would we rather have a $450 Fett several months late? Some people would--a large proportion of which probably post on message boards like this one. However, I think that most wouldn't. In fact, I would venture a guess that the majority of the people who will be purchasing one of the 4000 Fett PFs would rather that Sideshow bring in the figure at the originally announced price.
Personally, I would have paid $450 for Fett. BUT--I don't assume at this point that a $450 Fett would be superior to the one we're getting. I don't believe that the switch to ABS was a cost cutting measure. It was the answer to a development/production challenge. I think that as Brant said, the new material will give it more durability and uniformity than polystone would have. They're not going to make a change like that just to save pennies. He told us that doing it in plastic is not actually cheaper for them in the long run, and I believe him. So it wasn't a money issue, but a quality issue.
I would have paid $450 for a Fett that was of superior quality, but it remains to be seen whether or not an extra hundred bucks would have given us a superior product. As with Grievous, they decided what it would take to give us the best product possible and then set the price from there. They didn't start off saying, "OK, Fett is going to cost $325. Let's make all production decisions based on that." If they thought that the best Fett they could make would cost $450, that's what they would have charged. I am naive enough to trust that this is the very best Fett they could give us.
As far as I'm concerned, they are making this one just for me--and they aren't going to let me down.