K.A.
You can upload all your pictures to Facebook and then transfer them all to Costco's website and get them printed or burned on to CDs or whatever you want. You don't have to make any of the pictures public on Facebook.
I've not tried, but Costco may be able to transfer the pictures straight from your phone.
I still like having physical pictures to hold and share with people so, no, you're not the only one :)