Genuine question, is switching SIMs that frustrating? The Nokia trick wouldn't work for me as I use my phone mostly for Google Maps & data, it's far cheaper to

Genuine question, is switching SIMs that frustrating? The Nokia trick wouldn't work for me as I use my phone mostly for Google Maps & data, it's far cheaper to swap SIMs than buy an iPhone for each country :) Even in my home country I switch a SIM card between my two phones, depending which phone I need to have 3G access. My tactic when travelling has been to use a global roaming SIM during a long-haul trip (eg so I have some data during airport stopovers), then switch to a local prepaid SIM with a good data allowance once I reach my destination. (Congstar has worked well for me in Germany.)