Getting new gear seems like a problem for the player that's unrelated to the argument. In WoW a tanking paladin has a completely different playstyle and armor than a healing paladin. That doesn't stop people in their tracks .
Right, and changing from a tank spec to DPS spec on my juggernaut is any different? Changing AC's would be closer to paying Blizzard 25$ to go from Paladin to Druid almost, I don't see any sense in it.
Now *if* it came out, I'd think the cost and/or cooldown should be based off character level. Such that let's say a lvl 50 would pay 2.5k CC with a 60-day cooldown, but a fresh lvl 20 would pay maybe 500 CC with a 7-day CD for instance.