I built something solely for myself and now I'd like to know if it's useful to others facing the same decisions. About a month ago I got tired of trying to use Excel to help me plan out when it makes financial sense for me to sell my current home and buy a new one (answer: not anytime soon). I had originally put together a tool in Excel to help me answer this question but honestly it just wasn't very good and my wife thought it was ugly (it was). So I put together a calculator to help map this...