I may be fairly new to cycling and not have the most experience in the world, but this sounds similar to the battle I had in my head over what bike to buy. I had compared many bikes and ended up going with the train of thought that I'm sure this lower level bike is fine for me." You know what, it is. BUT, I now have buyers remorse. Now that I have really gotten into it, I wish I would have purchased the upgraded model instead. I guess my point is buy the best you can afford, if it feels and fits the best. (My 2c)