Why are tamiya buggies parts hard to find?

[AnimePerson3.5]

I been looking at some tamiya buggies recently and I’ve noticed that barley anyplace carries parts for the buggies I’ve checked horizon And Amain hobbies but can’t seem to find parts for most of their cars

 

[Kimmie28]

Try tamiyausa.com they sometimes have the harder to find parts. I recently got the aluminum battery heat sink for my txt-1 from them.
Depending on what your looking for I may have some parts lying around