I will not be 'spoiling' or doing stupid water changes all the time. I know they are hardier than their wild relatives and don't need to be assisted in every way.
If this is what you are planning on doing, you will NOT be successful keeping discus whether you get your discus from an LFS, a breeder, or from Amazon. Actually, wild discus are just as hardy if not hardier than the domestic ones. I currently keep a tankful of wild discus. You need to understand the need of the fish if you want the fish to be healthy and thrive under your care.
Agree with reptileguy that there is nothing wrong with buying healthy and well cared for discus from LFS. Some do get their discus from a reputable source such as Discus Hans and take good care of them. Scales in MD was one of them, but they are no longer in business.