Eh, vocabulary skills are important but around the right people, if you use a bunch of more sophisticated words around people who wouldn't usually use those words you'll sound like a condescending asshole
Yeah, people in Texas are stupid... we have NASA, Texas Instruments, Dell Compiter, Raytheon (makers of fighter jets and other aircraft), Exxon (as well as other oil companies, and supply your dumb ass with the majority of your fuel), home of the most advance cardiovascular medicine in the world, etc., etc.. Dumb ass.