What shown in the link above is essentially what is shown in the image below:
I have done a small test about its content:
The main piece is the sort of Spark-uino 
, Arduino compatible etc. with optiboot instead of the standard Arduino bootloader. It costs 19$ from Sparkfun.
Then the kit includes:
DC motor, 2$ - 3$
20 coloured LEDs, 6$ for all, average price on Farnell site
3 pushbuttons + 2 (different size) and other discrete components for about 4$ (average price on Farnell site)
I want to ignore the cables, anyway we can add another 3$ for this stuff
Servo motor, around 6$
Sound sensor and accelerometer, 10$ (just to exagerate)
A small-sized breadboard with support, around 5$
The total of this stuff is less than 60$, most of them IMHO is useless.
The kit is sold at 149$, three times more (!!!) but what leave me astonished is that after years (because are years) the new, the last updated release, the non-plus-ultra again proposes always the same soup: a list of always the same circuits, from blinking a LED up to detect acceleration, detect sound and so on. With a very poor satisfaction of the customer, I think, as he should do nothing more than copy-and-plug the circuits designed on the documentation. That is all downloadable.
What a well educated, really supported user can do with 150$ ? I think more and more and more. With more satisfaction and surely acquiring more knowledge.
Just to share a point of view.
