So I'm currently ON my cruise and I'm going to post some of the info I really wanted when I was cruising the boards and reading this thread regularly wondering about upgrade possibilities... The price.
So, as noted, it depends on factors like cruise length, ship, time of year, and--I think--how full the ship is. It doesn't matter how many people are in the room or how much you paid originally. The chart they use just factors in what your category is and what cat you want to upgrade to. (Edit: This is for a seven-day Western Caribbean on the Fantasy.)
From a 9B to cat T (one bedroom concierge) was $2170
From a 9B to cat V (standard verandah concierge) was $1470
From a 9B to cat 4 (largest verandah room without being concierge) was $945
From a 7A to cat T (one bedroom concierge) was $1925
From a 7A to cat V (standard verandah concierge) was $1225
From a 7A to cat 4 (largest verandah room without being concierge) was $700
One thing I read that someone else posted was that the problem with upgrading to concierge is that you Will never be able to cruise Disney again without it, which I thought was cute and funny. Yeah, well--take that seriously. We had a blast the last two times we cruised and, like everyone, we've been blown away by the service and friendliness of the crew. So the concierge service is like that on crack. My husband forgot cuff links and Julia found some and brought them down to us in the Walt Disney Theater... And then went and bought caramel corn for us while we stayed in our seats. And totally insisted and didn't make us feel lazy for letting her do it.
. This is just one example of the amazing over-the-top concierge service... The one bedroom is freaking amazing and we have the accessible room so it's even bigger! We're just trying to absorb it all. Anyway, just getting some of the info out there now. I promise to post more later. Now back to the cruise!
April
PS--did I mention I'm typing this on the iPad I borrowed for free using the free 100-minute Internet package that comes with concierge? IT ROCKS.