I’m using Vista Home Premium. My ESET NOD32 subscription is up. Now I see a choice between ESET Smart Security 4 for $60 and ESET NOD32 Antivirus 4 for $40. Is the extra $20 for the Smart Security 4 worth it?

I believe last year I paid $40 for my renewal last year. It looks like Smart Security is new.

Thanks for any suggestions!
Mike