Why do old cars cost so much money?

Why do old cars cost so much money?

I have spent so much on this old sports car.

want to make my motorcycle louder? what can i do to make it louder?

want to make my motorcycle louder? what can i do to make it louder?

i have a 1985 yamaha xj 700. im wanting to make it a little more throaty, it doesn’t have much sound right now. any way of making it louder without spending to much money?

Vega mach or Scorpion Exo?

Vega mach or Scorpion Exo?

I have done a lot of homework on this. I know ARAI and Schoei are the best but I am choosing to buy something more affordable (please don’t tell me that I should spend as much money as I value my head unless you have some valid links with data/reviews/reports to support your claim). I