I like the lugs also! I don't think you are alone there. The "smooth" look of the Tetra is really because when it was originally designed that was the best way to join the tubes. Now you have a choice.
I'd get a Luna with your riding preferences. I love my Luna and unless money was not an issue I think you money is better spent on upgrading your wheels etc. than say getting a Fly. I own both and they are remarkable in being so much alike. That is Craig's goal. Every bike rides, handles and responds the same...the differrence is weight primarily.