Dave,
I guess there is no love for the National parks here. I would buy them in a second.
I have always tried to stay with my home roads but I have been in the National Parks almost every year for the last 20. I enjoy all the railroad history behind the parks. It was the railroads that basically built the parks and made something out of them in the early days. Going to Glacier NP so many times has basically gotten me into the Great Northern with there slogan "See America First" and now I a fleet of Great Northern items. The Northern Pacific & Union Pacific were big into Yellowstone. Union Pacific promoted the North Rim of the Grand Canyon, Zion and Bryce. The Santa Fe marketed the South Rim. I think the Southern Pacific marketed Sequoia and Yosemite. Not sure who had the market cornered on Mt Rainier and the Pacific Northwest.
I have no desire to buy president boxcars, especially modern presidents. Came close on a few of the railroad art work cars but didn't bite. Not really all that impressed with the 115th Lionel train (cool finish - logo not so cool). But these even though I am pretty much a scale guy I would get some as long as they were cool and had great graphics (Preferable historic graphics) like this
But that is just my opinion. There is a full series of these that covers almost every NP. If you guys have not ever made it to Glacier NP than you are missing out.
Keep up your campaign Dave.