Got my K-5, wanted to get a grip for it too. Though I already know the original grip cost $200 before I get the k-5, it still hard to believe.
My K200d original battery grip only cost $40 include tax from Amazon when I bought it two years ago. I will buy the original one for K-5/K-7 if it was $70-$80, but it is $200! I will try out the camera without the grip for a while and see if I should get a grip.
I can see that the Type-2 grip is very similar to the Pentax one except the rubber sealing. I am not sure if the weather sealing worth the $150.
Come on Pentax, you can make a $40 grip for K200, sure you can make a $80 grip for K-5. I know many friends who doesn't buy the grip because of the price, but if you lower the price they are willing to try it out. Just like I did with my K200 grip.... it is reasonably priced at $40 and I just got to try it out --- it make the handling so much better, and I like my Pentax more.
Oh well.... decision decision.... $60 or $200 grip!
Lee