I just priced CSS for March 2015 for 10 nights, same time as we will be there this year, and prices are very comparable to what we we quoted when we booked 2014 last May. We did end up finding a cheaqper quote, twice, and both times Couples honored the lower price.
If this keeps up they are going to price themselves out of the middle income market. Only the very well off will be able to afford those increases in prices. Those folks also will be looking for something way more up to date.