Here’s the Raspberry Pi starter kit from Maker Shed:
Here’s a size comparison with an Arduino (does not come with kit):
Just as a note: I bought this kit about two weeks ago when it first came out at the full price of $124 and now it’s on sale for $99. Yes, I know, tough nuggies. But it’s hardly a way to stimulate short-term sales if you signal to your customers that if they hold off on buying right away, you’ll cut prices by 20%.