Oh I do hope you are right Ian.
I don't know why, probably all the reasons you stated, but I MUCH prefer a Static IP, but unfortunately, they are not available yet on TT FTTC setups. Which is a real pain.
I knew that my old IP that I have had for several years had no black marks against it, whereas if I check any of the "new" dynamic IP addresses that are now passed my way by TT they have at least 3 different black marks !!!
2 x TalkTalk 38mb FTTC lines, current speeds a rock solid 34mbps on each one.(hiding behind an assortment of DGND3700v2 Dual Band, DG834PN & DGN2000 routers) on: a Win7 32 Ult (RTM) Desktop, Win8 x64 Pro (RTM) ) Desktop & Win 8 x64 Pro (RTM) Laptop.