Replying to Does anybody still use old style film?

I have no clue about anything photography related but I think I've heard that some people still use film cameras even though film isn't being manufactured anymore.  Is this true?

Short story: came into possession of a whole lot of brand new film rolls in the box that have been frozen for 20+ years.  Do people still use these?  Are any worth anything anymore?

There is a whole variety of them and I probably have about 200 rolls in total.  Kodak Ektapress gold 1600, Kodak Ektar 1000 and 25, Fujicolor Reala, Fujichrome 64 professional, Kodachrome 25 professtional, Kodak Tmax 100 black and white, plus a whole bunch more.

Are these worth pennies or millions or somewhere in between?