The neat thing about being a Cat 2 on the road is that, per USAC rules, it enables all kinds of other upgrades. It lets you be a Cat 3 on the track with the approcal of a USAC certified coach, meaning I can do most B races and some A races at velodromes. Whether I do well in these races is a different story. It also means that I can race cyclocross as a Cat 2 (I'll save that until I can remount gracefully), and race mountain bikes as a Cat 1 (I'll save that until I have a mountain bike and learn how to ride it).
I was able to upgrade from Cat 4 to Cat 2 in one season. Not many people can do that. My race license now has three upgrade stickers; it's getting awfully crowded.