Really?
Looking at the Ashdown 4x8 ad, on the 1st page, as an example - I can't see a price anywhere.
FWIW I'm using an Amazon Fire tablet, with the default Silk browser, and I've tried both the desktop and mobile view.
Edit: just tried Opera...no different. I'll get a laptop out, and give that a go.
Edit: OK - I've tried Firefox and Chrome on Windows, and it's working. Tried the default browser on my Samsung (Android) phone, and the price is still not showing. Tried Firefox on the phone, and the price is there.
Looks like it's a browser thing