I think the EDA industry definitely has a stodgy, old-boys-network feel. It just doesn't feel like a very dynamic industry when you compare it with, say, web development for social networking. Now that I work in web dev (because my EDA job was shipped overseas) it just seems a lot more fast-paced. New languages, new frameworks, new libraries appear on just about a daily basis. For those of us who like learning new things that's kind of nice. Also, I find that these small startups (not in the EDA industry) can make decisions much faster - that could be hiring decisions, decisions about technologies, etc. EDA moves at a glacial pace by comparison.
A web or mobile app company can create a prototype and get funding in a matter of months. An EDA startup can take years to get to a working prototype. To some extent, I think the fault lies with the VC community: they can understand the web and fund quickly, but they don't want to bet on an EDA company where it can take years to get to payback.