Disney treats weddings and vow renewals interchangeably, so all the info you read for Escape and Wishes weddings applies to vow renewals too. Technically, there are four options: Escape, Wishes, Couture, and Cruise. The Cruise collection is the cheapest ($2,500 on top of whatever you're paying for the cruise).
One alternative would be the Swan & Dophin, where package prices start at $2,822 for the ceremony venue, an on-site coordinator, an arch, an officiant, one bottle of Champagne, a two-tier cake, a bouquet and a boutonniere, and a violinist. Or you can pay $1,600 for the ceremony venue and the services of a wedding coordinator and then add as many or as few extras as you wish.
There are also lots of other places in Orlando where you can hold an inexpensive wedding or vow renewal, like Leu Gardens and the Kraft Azalea Gardens (in Winter Park).
