Very well said! I've always lived in the US, but as I'm in the electronic design business, I have to deal with both units daily. I do approve of switching to the metric system for everything, but only use them at work.
About the only thing that makes me mad, is missing tolerances, rounding and unit-less data files. I get drawings (in either unit) daily with no tolerance and many of the latest and greatest CAD data formats still don't support units or the program reading/writing them don't use/create them!!!! The first 2 can not be fixed by any system of measurements. The last two would fix any computer based data transfer in any unit. Heck, if they wanted to, they could add a units tag to HTML, and you could make pages (the writer) in either unit, and the browser could show you (the reader) what you prefer!!!
I still can't handle long distance (car) conversion in my head, but a 5 hour trip still takes 5 hours if the distance is in miles or km. ;-)
And would someone that KNOWS metric is the best:
First, please write in decimal format, 1/3 of a meter!!!! ;-)
Second, justify the use of 1/10,000,000 of the distance from the equator to the pole as a good starting point for a distance measurement!!! ;-)