Most C#, .Net devs and even VBScript devs had very little desire to learn JS. Not to mention that prior to IE6 becoming dominant there was a lot of very painfu

Most C#, .Net devs and even VBScript devs had very little desire to learn JS. Not to mention that prior to IE6 becoming dominant there was a lot of very painful variance between browsers. JQuery helped to normalize this a lot. Part of why the ASP.Net (and others) were modeled with a full server postback. It worked fine when the server was in a server room in the corner of the building you were in, over the internet on dialup, not so much.