Default Poll: How often do you change your phones

This is a poll to understand how often people change their phones in the midst of hundreds of phones released each year.
Current Devices: Samsung Galaxy S5 (Black) & Iphone 5 (white)
Current Rom: Omega Rom
Current Tab: Ipad Air Wifi
Current Tab Rom: IOS 7.1.2
Previous Tabs: Nexus 7,Samsung Galaxy Note 10.1,Advent Vega,Eee Pad Transformer, Samsung Galaxy 10.1,Ipad 3 16GB,Ipad 3 32GB
Previous Devices: HTC Desire, Blackberry 8520, Nokia N800, HP IPaq,Nokia N90, LG Viewty,NEC, Iphone 4, Samsung galaxy s2, Samsung galaxy s2, Samsung Galaxy Nexus, Iphone 4s, Samsung galaxy note 2, HTC one (silver), nexus 5.