I only ask because I see pricey blocks of alum being sold everywhere, ranging anywhere from $8 to $18, even though many Indian grocers sell alum blocks on the cheap (mine was $2). Also, I believe crystal deodorant is also comprised of alum, and I bought a small stick for around $3 from Wholefoods. Why do so many shaving brands get away with highway robbery and has anyone here bought one of the more pricey ones?