This may surprise you, considering its relative unpopularity in the States, but in South Korea, the most smartphone saturated country, Pantech is actually just as popular as its local rivals: Samsung and LG...
Source: http://www.phonearena.com/news/The-new-Pantech-Vega-is-an-LTE-A-equipped-Snapdragon-800-powered-5.6-inch-device_id46012
Source: http://www.phonearena.com/news/The-new-Pantech-Vega-is-an-LTE-A-equipped-Snapdragon-800-powered-5.6-inch-device_id46012