We have been looking around at other cell phone options. We don't have Costco, so I can't really answer your question. My son has a pay as you go phone through Virgin Mobile. I was upgrading his minutes and noticed that they have a plan that is very tempting. For $89.99 a month, you have unlmited minutes and unlimited texting. They also have cheaper plans with less minutes. Right now my husband and I are paying about $140 a month for our two cell phones and are tied down to a contract. We are thinking about going with the Virgin Mobile plan and get the $89.99 for me and the $24.99 plan for him (I use mine a lot, he hardly does). It is cheaper than what we are paying now and we aren't committed to someone for 2+ years. I assume other pay as you go companies have similar options.