To Replace the Rad or Not Replace The Rad?

[Pqtaces]

I was told I need to have my radiator removed and cleaned (My car runs hot in any driving other than constant frwy speeds of over 60 mph). I was looking at replacing the radiator with a new high capacity one as my mechanic told me it is a good idea and would make the car run about 20 degrees cooler (its Guldstrands, so they know what they are talking about).

In a previous post someone said it was a waste of money to replace it unless you are racing (which I am not). My 1991 Z has 95k on it and my biggest reason for replacing it is to hopefully extend the life of the engine. Since I have to have the rad out for cleaning anyway the labor of the replacement is a non issue. My question is whether everyone thinks the $500 or so for the new rad is worth it or is it truly a waste and I am better off putting the $ toward a fun mod?

Thanks,
Peter