Sometimes finding the right saddle for you just requires some trial and error.
I don't think you need to spend hundreds of dollars for a premium model to get one that will be comfortable and last a long time. You're mostly paying for weight savings when you get above $100 or so.
Some bike shops will have demo saddles. They let you try one for a few days, and if you like it you can buy an unused copy of the same model. Fizik even made special versions of some models with this use in mind; they were brightly colored and labeled accordingly.
For what it's worth, my favorite saddles are Fabric brand. They are reasonably priced, and I find them to be among the most comfortable ones I've ever had.