Nah, better components are always nice, but hardly a necessity. The principle of diminishing returns also rears its ugly head when looking at upgrading. Keep riding and have fun!
i commute on a late nineties CAAD3 that I converted to a flat bar commuter and it's holding up great and is a lot of fun. Only "issue" is that the CAAD3 was notorious for being a rough ride - boy is that true. That thing was built for speed only. Regardless, I still love my Cannondale and I'm sure you will for many years also.