Re: "number portability"
indeed Mage. I've only ever owned two 'tied to a network' phones (circa 1997 and 1998). Yes, I had to get a new phone after a year, because the deal was only available from Orange (now half of EE) on a boxed kit with new phone, sim, leather pouch (remember them?) and 12 months prepaid (over 30 mins per month billable).
So I ended up with two identical phones. It was fortunate the market moved slower in them days... the phones were identical so i ended up with four batteries, 2 chargers, etc. (necessary with early motorola handhelds).
But it did strike me as an amazing waste of resources that simply paying for an extra year cost MORE than entire new set of kit. So when I finally ditched the orange phones in 2001ish, I bought unlocked nokias which I continued to use till 2010, when I bought my first smartphone. A Galaxy A3. Outright. for cash.
Provider keeps trying to tempt me with free phones. But if i question them, it turns out the phone is NOT free, it's 'subsidized provided i sign up for xx months'. They've quit calling me recently after being told to stop lying to me