Are the older games worth it?

I have completed Old blood, TNO and am just about to complete new colossus. While I think colossus was fun and did enjoy it all together I still preferred old blood and TNO. I was wondering if anyone here could give any details about return to castle wolfenstein and wolfenstein (2009). I have heard that although different from the modern games they are still considered good.

On a side note I was wondering if The Freedom Chronicles for wolfenstein 2 is worth it, 25$ seems a bit expensive for an expansion pack.