I guess it's all in how you look at things. We have two teenagers who won't share a couch and are too big for the beds that come down from the ceiling...so for us, the extra room is nice. I don't pay the extra money to get concierge service. Especially now that we can book things online. I pay the extra money for the extra space in the rooms.
I wouldn't advise anyone to pay more money just for concierge. If the room you have booked is large enough for you, and you are comfortable with the cost, stay with it.
Jim....this may have been a typo on your part, but 8530 is the Roy Suite. 8030 is the Walt. They are identical except for the color of the wood paneling, and of course, the piano. Just on opposite sides of the ship. I only am pointing this out so that if you did book 8530, and really want the Walt, I wouldn't want you to be disappointed that you ended up in the Roy. (I wouldn't!)