What is the anime you never get tired of watching all over again?
Golden Boy is a good one.
Not many others. I used to watch Trigun often. Desert Punk would be fun to watch again.
But as I have already discussed, I am brushing a 10,000+ hours of anime watched. I really don't want to rehash too many things I have seen already, not when there is so much other good stuff to watch.
When I first started watching anime it was hard to find. This was in like ‘91. I had to wait for it to come on MTV's Liquid Television or find a movie channel showing a rare animated movie. I was about 11 and I didn't get much of a choice about movies to watch above PG-13. Many anime that were slowly being imported then were movies about sex and blood and violence, which was a no go in my house.
So, as much as I liked watching Ninja Scroll and Vampire Hunter D 25 times, I quickly grew out of watching shows over and over. With thousands of shows to choose from and without a close group of anime friends to push me to watch stuff over and over, I just keep on moving forward, watching new things and expanding my concepts of what Anime an be.