They do not charge per graft but per session (hours). In one session (mega) they extracted from my head from 1300-1600 grafts (av. in 4 HTs). On average I had pay 2 euros/graft but I ve done 4 HTs on them and I had a discount. However, 1700 grafts have been extracted from my chest and beard areas, which are, generally, more expensive grafts everywhere.