yup. it's also important to note what kind of riding you're doing and where you're doing it. I'm in nyc so it's pretty much all flat and I've ridden various gear ratios for not having anything else, riding home from kissena and found that if you want to move up, do it slowly to build skills & confidence with stoping & manuvering in traffic. Smaller front ratio provides more instant responsiveness.
Right now I'm riding 48/16