Just compare srilankan albums and international music albums. Check the difference of price in stores. SL album cost Rs 500 and international album costs many thousands. Both artists have same production cost or our people have more. Since equipments are expensive in here. And in the other hand srilankan audience is very small compared to international audience. So srilankan artists have only small number of people to recover their money.
Many years ago too albums were Rs 500 and cassettes were around 100. It never increased. I have cassettes around 15 years old but still the price tag says Rs 100/- Just think Rs100 15 years ago!
But in the other hand all other stuff increased their price. So music makers have to pay big money to buy other stuff while selling their stuff for cheap.
About your cars and music point. You are actually supporting my point.
Because you said you can't copy cars but can easily can copy music. Cars are very expensive but people buy them and they have value on them. Music can be copied easily so they don't find any value in them. Lets say we'll give album for Rs 250 you think people buy hehe. Machan i have friends who think copying a CD is waste of money. Not buying just copying is waste!
They want to put like 10 albums in a one CD. They say putting a album in CD is just waste so should put like 10 albums or use a flash drive to copy
So my point is bro. The biggest issue is illegal copying and sharing. After you reduce illegal sharing or copying you can reduce the price of album depending on sales.