Mike like I said I do see a use for it, and what you have done is that. It's great item to get children into the hobby.
I guess my mental problem ( LOL ) is I'm 63 and not thinking about kids or grand kids as I never was blessed.
But with they way your talking for grand kids and all is great. Also to me it would be great for someone who doesn't have a lot of room and wants a train around the tree, and doesn't want all the other items to get it set up.
I never said I didn't see a use for it just I'm under the impression a lot are switching over to it and basically down grading.
By the way I like conventional and some TMCC. I do have a legacy lite set also but basically I run the original TMCC with power masters where needed and TPC-300/400 when needed. But at present no layout. I'm about to get a room about 17' x 25' . But need to do some work before that becomes usable for trains.