I have been to Orlando several times and, much as I adore Disney, there are times when I haven't gone. Universal is excellent, and Sea World is fun (although getting completely soaked by Shamu and a downpour didn't exactly add to the experience!)
I'm not sure if Universal still do this, but the last time I was there, they offered priority boarding for some of the more popular rides. Basically, you register at a desk near the ride, and are given a boarding time. You can then wander off and do other things til then, and when you return to the ride, you are taken past the main queue to the boarding area. It gives you so much more time to enjoy the park if you're not spending half your time queuing.
There are other trips you can take from Orlando too, such as a visit to the Kennedy Space Center (no trip to Florida is complete without that, IMHO) or an airboat ride across the Everglades.
In fact, by the time you do all that the Flexticket covers, and allow a day to recover after each theme park, you won't have time to miss going to the Disney parks!