Included in the bundled kits I've gotten recently are styles. I can put glitter on something, I can make it into a plastic item, I can make it felt textured or whatever. Since all I need to do is apply the style, I don't need to buy an element that is glittered, or plastic, or felt textured.
This is a concept to mull over. I'm sliding down that slippery slope to creating my own stuff. If I am not creating my own stuff, then at least, I'm not limiting myself to using the elements in kits as they arrive at my laptop. And that's good.