Better raw, “guaranteed” gil: Vendor or Desynth?

[Omedon]

As someone whose “endgame” is leveling all jobs, and intends to do so via trust dungeons, I’m about to have a lot of 70’s and 80’s dungeon green gear that won’t necessarily get used for very long if at all, and so I often wonder what to do with it all.

I only have 5m gil at the moment, so gil acquisition is still on my radar, and so that’s why I often look to vendor it all (sell to an NPC for gil), but it seems the community default for getting rid of unneeded gear seems to be desynth. Is this because most people are richer than I and so aren’t thinking about gil as much as I might, or is there something I’m missing here?

I’m sure someone will mention the MB, (for desynth components) but that’s not really guaranteed, so the difference would need to be pretty substantial to eclipse the raw gil faucet of NPC merchants, IMO.