Bound =/= Binding So why the heck can't we sell the item?

[RynaultB]

300k gil worth of gear will more than likely be less than 100k in materia.

So not only am I losing gil but I'm also going to have to waste time, "spirit bonding" gear in order to convert it and sell it for scrub gil.

Not profitable at all.

If your doing that, then your doing it wrong. YOu can easily buy cheap high level gear to spiritbond or make your own to SB to sell.