If price and worth mean the same thing, why priceless and worthless are opposites?

5 answers

that's a good question
Isn't our English language wonderful?

But there is a difference. Do you see it?

priceless -- without price
worthless -- without worth
i see it
they are not same
See these examples
1. The worthless Liberty City sold at 9,000,000 dollars (not only the cd)
2. The worthless GTA 4 sold at 190,000 dollars(same)