Well, if you want to see the more rare stuff, that would be the Air Traffic Controller 2 line, which came out 3 months ago. Too bad they are all 1:300.
As for the landing gears...well, it's meant for a 550 Yen trade model, so I don't expect them to be museum quality. Although given some of the unboxing videos
on YouTube, their quality isn't too bad. I've paid more and gotten less.
They are meant to be removable (unlike most 1:500 models) and can be displayed with an included stand. Mine usually sit in the back of the glass display case anyways.