Since you can't meld main stats, no crafted gear will ever beat something that has a higher ilvl.
Since you can't get i110 gear unless you're in a large elitist FC (at least for a few weeks) or have very very good pugs (and are willing to go with strangers in coil, even if they're "good" strangers - I know I'm not except to fill holes in my static). i100 gear is not so bad its useless. Unlike what you think.

I mean yes, the higher ilv gear will have higher overall dps, by a small margin. But that margin risks being very very small if you compare i100 with i90 pentamelded. With the additional perk of having VIT on accessories (and not on the tome ones, unless a tank).

I prefer 8 VIT to 4 MND. I prefer 16 crit to 16 any other secondary stat. And I don't really care if my 15 MND i100 accessories would be a tiny tiny bit better than my 13 MND 13 VIT accessories i90.