I was at my local natural foods co-op yesterday in Nebraska (USA), and I saw that Diva Cups are on sale this month--$6 off the regular price, which makes them just under $24 (23.something). Diva Wash is also on sale (I haven't used this but wanted to mention it for those who do).
I wanted to pass the word in case people were looking to buy one or knew people who wanted to get one, but found the cost to be too much.
The sale is part of The Co-op Advantage program, which includes natural groceries in the midwestern/southern US.
I have a sales flyer here, and the co-ops listed are in Arkansas, Illinois, Indiana, Iowa, Kansas, Kentucky, Michigan, Minnesota, Ohio, Wisconsin, and Nebraska.