Iron question? (more of a shaft question)

[redsox98]

I bought a set of BeCu Eye 2's early this year I have always loved the look of them. When I bought these I said I would play these this year and retire them and just admire the beauty. My handicap is dropping very nicely. So now I am reconsidering my idea about retiring these. My question is they where made in 1984 and the shafts are original and can't be redone due to the fact no one will touch them so how long do shafts last? Are they good until they snap or do they loose a little something? If I was to replace them now that I am a Ping guy and wanted something new would the replacement be the G series or the I series. I have hit both and have the same result from both although I like the look of the I series. Thanks for the help