[teaser to some] It seems to me the availability of "enclosed" Autoracks tri-level and bi level are an endangered species with an occasional trickle here and there. I purchased what I could over last 3 years where there has not been much availability - I have located 10 Micro-Trains Tri level and 2 Red Caboose Bi level (online search), I've not seen anything else in that time...but very well could have missed some. I think it would be nice to see a runner set produced 8 Car "minimum" would be nice = mixed selection...a sprinkle of weathered - few bi level along with tri level. (I'm sure of 3 road sets that would be most popular) *I have to believe there would be a large interest in such a set as fast as the single servings get gobbled up. I liken it to the soon to be available Micro-Trains 16 car runner sets of TTX well cars.