Do you need to be a member

Yes. You need a membership to enter Costco

60$ or 120$

Yes

You can use the pharmacy as a non member but every thing else is a membership.

You can use Costco gift cards without a membership

Yes, need to be a member. $60 for a basic and 120 for premium

Yes you need to be a member but You can go free with a friend who is a member and they can purchase it for you if you give them the money ahead of time:-)

How much is it