A question about green lasers price

Hi,
I was thinking...How much did green lasers cost 5 years ago and 10 years ago?
Do you believe that 473nm lasers and yellow lasers would become as cheap as green lasers cost today in 5 years or 10 years?

Due to more economical alternatives it appears very doubtful that 473nm lasers or yellow lasers will drop significantly in price in the next 5 years.