true, they are cheaper. I carry everything on my chip in case I have to bug out. music, photos, documents, medical history, photos, favorite books and stories, insurance, ID, banking, house hold inventory etc etc etc. All in neat little folders in a locked vault. I have the same on flash drive and in another micro sd sewn into the collar of a light fleece jacket I can use for layering or pretty much year round. So no matter where or how I'm evac'd I at least have the important information with me. The little woman does the same with her phone.