They do make more money that kit costs probably $25 tops to make electronics are different these are molded plastic and machined aluminum and carbon parts very cheap to produce there and not double here if not such high profit margins weren't sought. but you did say they don't want to work just pointing that out. I buy them and would either way but the whole double the cost thing is a myth created to help the consumer accept that his product is made in a factory that pollutes the atmosphere and treats their workers horribly so that they can recieve higher profits.