It certainly could, particularly for all the places you've visited firsthand. And it would be a way to keep in touch with travel regularly, too, which means you could still actually go do it. A tour guide of some kind would be another. You could be a part of a travel agency that actually creates tours and then you could go on the tour and act as guide. :)
One of the things I would like to do—not sure if it's going to happen now—is have a bed and breakfast or smaller hotel down in the Quintana Roo/Yucatan area of Mexico and then take people on tours of the Mayan ruins out that way. My wife has never been keen on the idea, though, so I've never attempted it, but it's still something that sits at the back of mind as something I'd love to do if I ever got the chance. :)