Look again - the refill rubber is $3.22. If by "clip" you mean the end caps, they are $2.30. If by "clip" you mean the center "element" that holds the blade to the arm, that's $1.61.
The $25.62 is "suggested retail" for the whole blade assembly (they sell it for $17.93). It is sort of strange that they left off the price for the driver side blade assembly, especially since its identified in the diagram.
I have become totally disillusioned with the local dealers (there are three). They all have their parts jacked up to about 3X retail and as you say, tend to not carry the cheaper essentials like wiper blade fillers at all. If it weren't for places like Majestic on the net, we'd never know what the price of some of these things is supposed to be.