I gave in during the first store offerings myself and wish I hadn't. As long as the store keeps netting them sales they're going to keep filling it with more items instead of developing them as unique quest/drop rewards. I know they aren't required, but I like the mounts/pets the store has and would love them for my characters. I'm just not going to throw more than my subscription fee at them for it. I'm an on again/off again player and every time something hits the store, it makes it that much easier to unsubscribe (not the only reason for it, just makes burnout that much faster).