Item upgrades will have an effect similar to the Dragon Soul nerfs, making raids easier over time.
Similar my ***. This only means that the bosses will be harder due too ppl with no time wont be able too grid the gear for a raid. 30% was much better solution in my option because 1.st you dont have too waste soo much time upgrading old gear and second it gives ppl with less time a time too breath.
Thats like saying we would like you too play longer so we get more $$$ out of you.
Upgrading your items is meant to be a progression, but the new raid gear in Patch 5.2 will be better than your upgraded items, so upgrading everything isn't mandatory.
Upgrading is pointless. Its better too save 4000 valors for a new gear when patch hits (unles they will make another s****y reputation roadblock). And no1 in right mind will go and upgrade all items anyway (unles super duper hardcore raiders). Ppl will simply burn out if they do that (unles they implent a *daily quest* bots).