My math is closer to 18 years. At the time I was selling UX services, and the 'prototyping tools' of that generation were what drove me learn PHP, Ruby, and Ja

My math is closer to 18 years. At the time I was selling UX services, and the 'prototyping tools' of that generation were what drove me learn PHP, Ruby, and Javascript - for all the reasons you state. I was baffled by all the time and energy people spent becoming an expert in the prototyping tool rather than an expert in building for real. I declared these prototyping tools an expensive distraction and never looked back.