While bigger tanks do offer greater stability, they offer some unique challenges as well.
Big or small tank though, the required commitment is the same if you seek success. There are no shortcuts offered by a larger system, a committed reefer will treat both small and large systems with equal respect and care, don't discount the fact that a larger system comes with greater responsibility either, due to the increased quantity of life under your care.
My hat goes off to all reefers who strive to provide the best habitat for their charges, from 1 gallon to 1 million.
When properly cared for, any sized reef is something to behold.