I think I've done one water change (75ish percent IIRC) on my current tank, and my previous tanks have had very very few. It takes both extreme nutrient export AND import to succeed, as using various high quality goods will supply pretty much every trace element one would need. Most people with large, older tanks do very few water changes and the corals don't care. It is sometimes out of laziness, but also simply because water changes aren't the miracle cure they're made out to be unless they are very large (50+%) and frequent to make up for poor filtration.
TL:DR get quality skimmers, employ chemical filtration and change it often, feed a variety of high quality foods, and you will see the "need" for water changes slip away with time.
Edit: the main thing is don't get complacent. Keep up on equipment maintenance and have some backups for when shit hits the fan, test at least monthly for cal, alk, and mag (more often for SPS tanks or if you make any changes to the system, such as adding several corals or adjusting dosing), and if you notice a problem, fix it sooner rather than later.