Despite outward appearances, Las Vegas isn't all hoity toity shops, fancy restaurants and glitzy hotels. Some may be surprised, even pleasantly so, to discover that Vegas has a geeky underbelly. For those sci-fi, comic book loving nerds looking for a spot to call their own, The Sci-Fi Center is a mecca. Located just off the strip, The Sci-Fi Center is a comic book shop by day, movie theater by...