It's not really about myself or my FC since it's only made out of 10 people, I do it because it's an easy way to reach the gil cap when an expansion launches. It's pretty easy to sell primed tier 3 FC buffs for a mil each to panicking FC leaders when people are jumping ship left and right for said buffs. Been there done that...

Anyway, it's not as painful if you have more than 1 service account since you don't have to log in/out as much as you can simply invite yourself, but it still takes a while. At least, it makes it a lot more easier to keep up with your houses' demo timer, because it does get hard to keep up with you have 16 lol.