A few questions regarding Life % vs. vitality and damage averages

[MarkVelocity]

Hi everyone,

I'm sometimes having difficulty knowing how the trade-offs work. So, here's my dilemma: Is it better to go for an item with Life 5% or 100+ vitality bonus? I'm not really sure which is more valuable for a mage class let's say.

As well, are people willing to pay much more for an item which has 220 average damage compared to one which has 150 and nearly identical states?

[MarkVelocity]

Thoughts anyone?

[d3votion]

Often, vita is > life%

1pt vita = 35life
100vita=3,5k life

now if u have 35k hp already, then 10% Life does the same....
for barb for example often vita is even more useful, because 1vita is also 1armor with a specific passive skill

2nd:
depends on the item, but ofc; more dmg=more golds$$