On my wishlist it has Divinty 2 listed on sale for $3.99 but when I go to the page it still says $19.99?

The sale price (3.99) seems to be through the mutator promo thats going on right now. Click on the banner on the main page and you should get the option to pick up Div 2 for 3.99.

Oh you have to buy two more. Nothing else I want....

You could always pick two of the 1.99 games, get all three for 8 bucks and still save over half off the original 19.99. Or you can just wait for the next sale...