[Memitim]

It is a interesting idea;however, the problem down the road would be pumping EC into the economy to have players take an advantage of crafting those items before they switch out. For seasoned players, it would not be a huge deal simply because they have a few hundred EC laying around (little dramatic, but point still made) as to the little man who may only have 1 or 2 laying around. Maybe a quarterly update and a increase in selection to chose from.

With a quarterly update, you could also incorporate some seasonal items to match the season that would fall within that quarter.

Maybe something like:
3 Helmets
2 Bracers
2 Shields
3 Amulets
2 Rings
4 Weapons
2 Misc Items (boots,gloves,masks, toys)