Right now we do Costco. They price out at 21 cents a diaper. The 82 pack of the Target diapers price out to about 17 cents, which is quite a difference! I am tempted, but we are happy with costco and haven't had any blow outs.
If you use them, can you 100% say they are worth it? We use Pampers Cruisers at night, and won't change that.