Just out of curiosity, does anyone know about how many Amtrak Guest Reward (AGR) points it takes to cover the cost of a Southwest Chief passage in coach from Los Angeles to Chicago? How many AGR points would it take to make this same trip in a roomette? Or in a bedroom? (What with the cost of these accommodations constantly going up, this might be hard to nail down at any given time.) Has anyone ever tried to use a combination of cash and AGR points for the same trip and same accommodations? For example, booking a passage from LA to Kansas City paying cash and then booking the rest of the trip (Kansas City to Chicago) on the same train and in the same accommodations using AGR points? (If the booking was done far enough in advance and you worked with a live agent it seems reasonable that it could be done.)