I started watching Robotech when I was 12 when it aired on TV here in the US. I am a huge fan of the show and it wasn't until ten years later when I attended the 10th anniverseray Robotech convention that I discovered that the show was built from three different anime that originated in Japan. I was shocked to say the least, and so I wanted to know more about Macross, and thus bought Clash of the Bionoids, and then Macross Plus, both of which were only available on VHS
Suffice to say, after watching Mac+, I became a huge fan of Macross, and developed a real appreciation for Kawamori, Ishiguro, Mikimoto, and the entire franchise.
I still have a soft spot for RT though. Like someone said above, it is still enjoyable because of the huge nostalgic emotions it gives me while watching it. Plus I think Ulpio's background music is some of best I've heard in ANY anime soundtrack.