If you're an avid reader of tech blogs, you constantly come across countless exciting products that will never make it to our shores.

Sometimes that's due to the tight control that a handful of manufacturers possess in certain categories. In the case of phones, for example, it usually comes down to the lockdown on telecommunications by the big four wireless carriers. Whatever the reason, there's plenty of cool tech that US resident will never get to see--without making a trip overseas or having access to an importer and a significant amount of extra spending money.

PC Mag talked to the experts at Dynamism and MobilePlanet and came up with 20 good reasons to renew your passports.