How long do you think i should wait before making a decision? I'm thinking about a month or 100,000 votes, whichever comes first. Does that seem reasonable to you?
I think that is more then enough. I think that if they approve this week that you should just run the survey until 31 March (3 weeks at a minimum). Don't end on 1 April as everyone will say your pulling their leg with it being April Fools day.
I think 3 weeks from iTunes release date is sufficient...use time not number of voters.
Good Luck and I look forward to casting my vote!