And you obviously haven't experienced using your phone as a grocery list in a store that has password protected wi-fi and everytime you turn your phone on to see what else you need you get this obnoxious pop up asking if you want to connect to wi-fi. No!!! yoU can't connect to any of the ones you're asking about anyways, quit asking!!!! And if I bother to turn it off, then I forget to turn it on back home where I do want it to connect for some features (like synching my phone to the computer without me having to do anything but plug it in or synching my finance program from my desktop to the mobile client).
I wish apple would either do something about it always asking if you want to connect to wi-fi or having it never connect unless you go into settings and ask (They could at least program it to only ask if it senses new connections that you didn't tell it not to connect to. When I'm in the same store and have been there for maybe 15 minutes I shouldn't have to keep telling it no). Personally, I don't need NFC to do that, all I need is for apple to let me toggle a widget even on the notification screen that lets me turn wi-fi on and off manually rather than having to go to the screen that has my settings, go into settings, go into general, turn on or off wifi. It's ridiculous (and a pet peeve if you can't tell). I'd be perfectly happy if they even just implemented that.
Your argument makes no sense to me. So you turn off your WiFi to avoid the auto pop-ups asking you to join new WiFi points? Why not just uncheck that "Ask to join networks" feature? It makes far more sense than turning your WiFi on and off. I only leave that feature on in the first few days of a new device. Then I disable it. Problem solved.
And if it's a WiFi spot that requires a web interface password, I usually just "forget" that network. Better than turning off my WiFi.
I keep my WiFi on 97% of the time with very few issues. I think the new feature that will jump to 3G/4G when WiFi isn't connecting will make it so I have even less reason to worry about it.