I've found the same and it is annoying.

We were lookign at cake toppers and some fancy ones in the photo-quite big ones-were listed as large size for about a dollar or two, but once we clicked into the ad, it turned out there was a drop down menu and the one in the description/size that you had been led to think was on sale by the photo and heading, was in fact about $14 or more. It was some other, smaller topper, completely different, that was the cheaper price.

I have no problem with having a drop down menu and differently priced goods, but the heading title should indicate that-such as Variety of cake toppers starting from $2, with maybe a photo of several together as their main photo.