What were the "plenty of API services" 15 years ago. I don't remember that many, you are talking pre google days... Like flashing "Under construction" websites... If there were APIs i think they were probably an accident ;)
Ruby and Python were both around ten years ago, and No body cared.. Python was primarily used as a CGI layer, and then later in Zope... Ruby just wasn't used (as far as I recall). After Rails, and Django, people started paying attention, and then google gobbling up the python community worldwide changed that.
What were the Blogging/E-commerce tools around in the 90s? Do they compare at all with the ease of use/scale of those quoted?