Whatever you want. Like muscle cars? Look for diecast muscle cars. Like stock racing? Look for Nascar cars. Concept cars? Get some concept 1 18 diecast cars. Buy what you like. Remember, the main thing is that you're collecting for fun, not because you need to. Don't turn it into a job, treat it like a hobby, because that's what it is.There is a list of factors, which will determine how much you will get...
