They’ve both had issues with information before. Google, with having too much information about people; and Path for sharing and taking information that people thought was private.
Although I appreciate the beauty of Path’s app, much in the same way that I appreciate the beautiful complex simplicity of Google+; the people that I want to be there that tie me to a social network just aren’t there.
…and developers know this. Why spend your time and effort into making a beautiful app if users won’t buy it?
I’ll pay for nice things. If I see an app fitting into my life that looks great and is functional, then I have no issue with buying it. Not everything in life is free, and I think a majority of Android users need to have a better understanding of that.