Edit for Aperture features 16 different modules for more than 4000 effects. The modules can be combined together in one step. Effects can be applied on one or a set of images right inside Aperture.
ROB.H I don't wish to be mean to the developers, but I have found a lot of these features either for free or for much less cost. If you look at what online sites such as Picnik can do, or low cost software such as PhotoShop Elements, then it does make this look like a very expensive option for the 'convenience'. (Version 1.65)
TSANTEE This is a bundle of 13 plug-ins that also are available individually (mostly $70 each). The appeal is for people who don't want to leave Aperture to do advanced photo treatments. I'm comfortable with my workflow of sending images from Aperture to Photoshop (for which I've purchased more than its cost in plugins). (Version 1.3)
ROY VAN DER WONING I'd never buy a plugin that costs 50% more than what it's supposed to plug into. What's next, a $1000 Photoshop plugin? (Version 1.1)