NZtechfreak: Sure, for lots of users less will be perfectly adequate, just not for me. Naturally I care far less about others needs than my own (in this case at any rate).
+1
I'm usually between 1GB and 2GB for the month. I often forget to turn the wifi on at all. I have done 2.7GB in one month. If I get worried, I guess i could throw my 2 degrees SIM in and buy a GB for $20.