I did an IQ test once and it gave me a score of 136. I'm also a member of Mensa, if it helps you in anayway!!

Ok, So the reason I asked this is because I am primarily a web developer using ASP.Net and C# as well as SQL for Sql Server, Javascript for good user interaction as well. I have also done windows forms programming, as well creating applications for the desktop like windows services. Apart from this, I have also done work on vba for Excel, Powerpoint and Access. Now, as part of my job I accept that I may have to learn new languages to get the work of clients done, but from a general point of view, is what I'm doing right ? The reason I ask, is because there are newer web technolgies from Microsoft, I havent had time to explore, like MVC and WCF, and I feel like I'm missing out on all of these.

As a developer, would it be beneficial to learn multiple programming languages / stacks or just stick to the one you know. Basically should one be a jack of all or a master of one ?