Adriatic posted:I think they chose "upgradeable" well.
Your forgetting that Pulmors were still made, but to much for many boards to handle back then. So even though k-line didn't use those, that "upgradable" note fit in well for the time imo.
When you compare them to the similar vintage Lionel "upgradeable" models, I think they overstated the case. I've upgraded some of the Lionel "upgradeable" models in about 10 minutes. Remember, Lionel was the standard that was set for that term, if you use that yardstick, the K-Line was hardly justified in calling it "upgradeable". 
