There's a keyword which there are no other ads for. The recommended bit is around half a dollar. But why can't I just bid 1 cent? What would be the consequences Also what is strange is that for local search (e.g. google.ca) this keyword is more expensive than global (google.com). But both cases have no competition (noone else have ads in top of the search for this keyword it seems). Should I still pay more for same keyword in the more local area?