My experience is
that 4 gig is PLENTY for my purposes but since it is so cheap to add ram these days I just bought a new refurb imac and I will bring it up to 8 gig just for the heck of it. I think a lot of ram is good if you are running many large applications at that same time or if you are editing movies. Maybe if you are working with very large multi track music editing files. Otherwise I honestly don't think you are going to ever need more than 4 gig for the average non professional user doing email, web browsing, word processing, microsoft office applications, power point, that sort of thing. Just one man's opinion.
that 4 gig is PLENTY for my purposes but since it is so cheap to add ram these days I just bought a new refurb imac and I will bring it up to 8 gig just for the heck of it. I think a lot of ram is good if you are running many large applications at that same time or if you are editing movies. Maybe if you are working with very large multi track music editing files. Otherwise I honestly don't think you are going to ever need more than 4 gig for the average non professional user doing email, web browsing, word processing, microsoft office applications, power point, that sort of thing. Just one man's opinion.