Great price at Coscto, on Special again. Great if you are a member, Note- $60 membership/year required (Fully refundable if not satisfied), but you do get free sampling freebies while strolling around as well :)
I got oral-B refills from the Shaver shop deal last year (worked out steeper) just before Costco did their deal at the lower price of $26.99 for a 10pack. Now I stock up at Costco.
Works out to $2.69/head which should be replaced on average every 3 months. I haven't seen these cheaper anywhere else.
Are they the genuine ones?