I've had a Cambridge CD player, lasted about 5yrs. Similarly a Teac one again about 5yrs and currently a Denon one that's 4 1/2yrs old, wonder how long that'll last.
BTW the 'optical out' is a con, the digital signal has already been 'de-coded' and processed by the CD players chip then the now Analogue signal is put through an LED emitter to give the 'lased' output, mind you I use that to record onto my 'Minidisc' simply for convenience (it automatically splits the recording up into the separate 'tracks')
Anyone who tells you they get a better sound through an 'Optical' link into a DAC is talking twaddle unless they own a CD transport instead of a CD Player (ideally with a remote Power Supply)