Not much lately. Look for the best offer. Cellular booths at Costco are not Costco owned. They used to give better offers and extra accessories. Plus you could keep your prior unlimited data plan (at least for Vorizon). Last time I switched plan anyway and their rebate never came. So, no benefit at all.
Cellular plans won't change, the offers on devices associated might be applicable as per deals in costco.
Return Policy, Bonus kits, reduction in overall bill when sales are on.
If I recall correctly the return policy is that of Costco and not just the provider so the 90 day policy would apply instead of 14 days most carriers have.. And sometimes Costco tends to throe in some freebies. As others said no other real Beirut..
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