Is goat milk protein very different from other protein shakes?

I purchased goat milk protein with points at Unni Deal.

Since I was paying with points, I didn't think about the price, and I also got a 30% discount coupon at the time, so I just went ahead and bought it. Haha.

But when the package arrived at home, I noticed it was much smaller than the protein shake I usually drink, so I took a look...

The capacity is small. The protein shake I used to drink is 3.2 times bigger.

A container of goat milk protein costs about 10,000 won, but I found I could only eat it about 7 times. ;;;;

Is goat milk protein normally this expensive?

It must be much better than regular protein shakes... but what makes it different that it's so expensive?

Since I take a protein supplement every day, I'm not sure if there is any reason to use goat milk protein. The price is just too burdensome.