I don't think bitcoin is a good choice for anonymity when you're only paying $15. The anonymity comes from the in-person cash transaction, hoping that they don

I don't think bitcoin is a good choice for anonymity when you're only paying $15. The anonymity comes from the in-person cash transaction, hoping that they don't remember you if pressed. You could just buy a prepaid visa in cash at the grocery store, for a similar amount of anonymity. Wear a hat and a scarf.