We have payed the additional $25 for 2 years now, and found it very easy to recoop the savings. Actually this is our 3rd year with the DDE (we were Florida Residents the first year) and saved hundreds and hundreds of dollars.
We like having 2 cards. Sometimes we split up, go to the pool bar by ourselves and similar. Also DH sometimes does business in Orlando and takes his work buddies out to Raglan Road for drinks. Another $$$ savings!!