Do you buy Girl Scout Cookies?

When I leave the grocery store, I will buy GS cookies if a girl asks me. Not because I like them (they are okay), or because they are cheap (they are more expensive than the cookies in the store I just left), but because I feel bad for the kids having to sell things, and the girls are so sweet! It’s like supporting tradition.
Do you avoid them? Do you feel guilty? Are these girls being used to manipulate us by Big Cookie?