We have priced other cruise lines and while
DCL starts higher, they end up lower:
Room Service is included (some cruise lines charge extra for this, we have seen a per visit charge to paying the same as you would in a fancy hotel)
Soft Drinks are included (most cruise lines offer a drink package, but it's expensive and soft drinks aren't even included with dinner on many lines anymore)
Mixed non-alcoholic drinks are cheaper than other cruise lines (we don't drink, but I am told their alcoholic drinks are cheaper too).
No charges for amenities like soap, shampoo, etc. (Some cruise lines are charging for this as well)
We don't have any kids yet, but they don't charge for the kids clubs (Most other lines do)
Disney only has 1-2 restaurants with an up charge (Sone other lines have an upcharge for all but 2 or 3, on average other lines have 5 with an upcharge)
There is no charge for any of the entertainment (Some lines have shows that cost about as much as a broadway play and some charge for thier movies)
Disney has a lower cost for thier suggested gratuities than many other lines, I am assuming the pay thier staff differently than the other lines.
Disney allows you to bring your own drinks on board, both Alcholic and non-Alcholic, something most other lines do not allow or limit.
So, when looking at the other lines, be sure to consider all of those factors when looking at the real cost. It is amazing how fast the nickel and diming adds up on the other lines.
Then factor in that it better matches our preferences because there is no Casino, all rooms are non-smoking, they have more entertainment, there's Disney Characters around the ship.