I understand, of course. If you watched any of my videos, you'll know I also prefer those "nice and quiet", "real" railway sets and layouts, where trains go from destination to destination carrying passengers and cargo. It's a calming experience and a rest for my soul. These were my first Tomy sets and engines I bought almost 20 years ago:
I would never buy a set where engines are falling, jumping or doing other "unnatural" things. There is one Trackmaster set where Harold picks up Thomas, fly him sky-high, and then Thomas is going down the extremely steep slope and flying through the air lands in some ugly big tube. What the hell? I'm not a fan of this kind of sets. But there is just one thing: many children really love them, just watch them on YouTube. Different times, different children...
I already can see kids racing with Push-AlongThomas & Kana (and other favourite characters) on this Sodor Cup set. It's cleverly designed for that use: pulling the red handle releases both engines, and the engine that comes to Finish first enters the switch and wins. Kids will play with that for hours. On the other hand, I see it attached to other tracks and serving as a really nice and unusual reversing loop. I don't like many Trackmaster roller-coaster Hot-Wheels-like sets, but many of them are really imaginative, and some of them (like this one) could be useful in a described way.
But I see we went off-topic, this is the thread for online selling shockers...