First of all, beachclub, I am sorry to hear about your husband.
We go to WDW usually once a year. This is the first time we are returning twice in 8 months. We were supposed to go last May, but I was on bedrest with my pregnancy until June. We opted for Sept and took our 10 week old. Now he will be 10 months when returning.
We would love to go more frequently-friends of ours live in Celebration,Fl. They are a hop, skip and jump away! WDW is expensive for a family. We are going twice because of our tax return and saving throughout the year. Normally we can't do this. Another part of our reasoning is to go as many times before we have to pay for our son-he will add a considerable amount to everything, especially when he discovers Buzz Lightyear and all the other cool Disney paraphenalia!
I guess you go when you can and enjoy spending time with your family. If you don't go that often, it's just more of a reason to relish every second you are there!