I have been trying to find an eyeshadow palette rather than purchase eyeshadow individual because I figure it will be cheaper to get several in a palette. So far not much luck. I was able to find two, one is very expensive and the other rated pritty high on the cosmetic data base.
Ecofriendly packaging for palettes are so expensive for the small manufacturer/ home crafter, so that is why they are pricey (And the acrylic ones are not that much cheaper either.) I was looking at the packing through a wholesaler (I make my own bath and beauty products), and the packing costs around $49 for 10 palettes (no eye shadow included in it yet, lol). So if you find a product that is cheap, you might want to question if the product contains what it says it contains and wonder where it came from.
Smurfy - I love Alima Pure, too! They great prices on samples, which are quite generous.
Another good budget options is Everyday Minerals, who offer some fun collections.
If you're serious about a palette, however, I'd recommend creating your own (such as a "smokey eye" collection) from Ecco Bella, who offers an amazing "paperback" compact and magnetic eyeshadow refills.