Nothing will last for ever, not even our planet /joke.
Earlier drives were more regid built than nowdays mass production stuff made in China.
My HP cd burner from 1997 is still burning cd's with high quality, although I have problem to find compatible media for it.
In contrary, my new Lite-On 20x dvd burner build quality leaves much to desire. Weak, cheap materials, vibrating and questionable production quality control.
I'm sure my HP cd burner will be up and kicking when Litey has long gone to Valhalla.
Sensmoral of all this, your (new) burner might last one day or 10 years. It all depends on far to many unknown factors for generating a more precise answer.
Hope it helps.
BTW, excuse my pure english and bad grammar. :bigsmile: