Core of Ripeness is 321 Spirit average. You're effectively at 2500+ already. :P
The same is factored into that 2.9k number for me with Tsunami's 400 Spirit. I love over-budget trinkets.
At a certain point, the extra Int on a piece (along with useful stats like haste/mastery) will outweigh the spirit on a piece (obviously still reforge to spirit). Harky has posted some very useful stat weights for use in pawn/wowhead/etc.
So you want spirit pieces, but some things (Flamebloom gloves, the epic rep gloves) are worth the upgrade for some people.
I have two. The neck from Valiona and the boots from Chim. Both are reforged Mastery -> Spirit. I'd rather have Spirit/Haste items there, so no real choice. Of the options in the tier I would consider them the best items for those slots. Not that they're optimal items for those slots, but that there's nothing better. I was contemplating the Spirit/Haste boots, but I was first in line on the 372 boots.
I have 3k spirit and its great, at ~2700 i began to add haste. I have reached the soft cap 12.5% for extra tick and now I am reforging into mastery. Its really fun waiting for pally tanks to drink in heroics, and not having to have CC as i can spam Flash heal for quite a long time. I rarely have to use shadowfiend and i never have to use hymn of hope. Heartsong is an excellent enchant as it procs quite frequently, and if u have lower spirit this will help tremendously. I recently did pugged BH and the pally healer couldnt keep up with me at all, so i would say between 2.5-3k is good and then u can go for haste and mastery to increase throughput as oom will be a thing of the past.
I’m currently using Core of Ripeness and Tsunami card trinkets. Last night Maloriak dropped Jar of Ancient Remedies. I didn’t roll on it. Bad idea? I thought I might use it in place of Core of Ripeness but then I lose all that intellect. I am just wondering what I should do if it drops again and I have the chance to get it. Should I replace my Core of Ripeness or just stick with what I’m using?
With buffs and 5 stacks of my card I’m currently at about 2.7k spirit.