I ride a low end road bike and wish I had a high end road bike I could commute on.

There are pros and cons to every bike and you should ride the one that makes commuting the most enjoyable for you. There are quite a few people here who ride some form of road bike. Cyclocross bikes for example are frequently recommended. Having said that, many folks wouldn't find road bikes fun to commute on at all, either because of personal preference or because their commute is particularly hostile to road bikes.