That is the reason I would not recommend a Colt as a practical gun today. Fine for collecting, and they work very well as long as they work. But with no good parts source and few pistolsmiths able (and willing) to work on them, they are rapidly becoming curios.
In spite of repeated rumors and gun shop stories, Colt is not going to bring back those guns. They cost too much to make when they were discontinued and they would cost even more today. Not to mention that Colt scrapped the tooling. Were they to decide to get back in the DA revolver business, they would probably do so with the new design. But then Colt purists scorned those guns before and are not likely to change.
Jim