Woah now, I think the original poster has gotten a little confused about what he was originally trying to say.
I agree with everyone else here that Mecha, Music and Love Triangles are what make any Macross title go round. They arent rehashes, they are the cornerstones of the series.
The way I read the original post however is that the original poster seems to be frustrated by the lack of over-reaching continuity.
I far prefer Macross to Robotech, although I grew up with Robotech, but I can see where the frustration is coming from.
By butchering several series, Robotech had the luxury of making this huge saga where the tales of the original characters were continued far beyond the original source material.
Macross, on the other hand, has never been like that. Each new iteration has been more or less self-contained but refers to a backdrop that is seldom expanded on. Its true that throughout 7 and now Frontier, the writers have put in this vague plot device of a colonization fleet. But why is this necessary? How long does it need to continue? Does the viewer ever SEE any new worlds or people being left on them? No, not really (although in Frontier there is a partly surveyed planet involved in the story, until.....).
I can see how, being a fan of Macross over Robotech, but having grown up with the later, one could be rather....disgruntled by the lack of tangible continuity and purpose when it comes to story.
Frontier is SUCH a good reboot for the franchise though. Its doing really well here so I hope a second season, OVA or theatrical release gets made at some point!