Long Tall Sally, the shop that caters to tall women, ran a survey a few years ago and 30% of respondents said they wear heels every day. Now, unless the outcome was skewed by masses of CDs voting, then all the people insisting tall women do not wear heels are quite wrong.
I still do not understand why so many people here think they are passing. You are not. You are either not noticed or people simply do not react the way you think they would. In for a penny, in for a pound - if you want to wear heels then the only person stopping you is you!