Comment Depends what you have on it. (Score 1) 254
It all depends on the importance of the data you have on the drive. A hard drive is a "wear and tear" part and simply will not last forever. S'not a question of if...but a question of when.
That being said I have an old Dell Poweredge 2200 that I think was bought in 1996 that's still running with the original HDD. I also have bought many DOA drives and had several die in a matter of days. It's a crap shoot.
If your data is important and you can't lose it then invest in at least a RAID 1. If you're a geek and want to have some fun (and burn some bucks) then go RAID 5 or RAID 10.
Many motherboards nowadays have some kind of integrated SATA RAID controller. If not then an IDE RAID card (PCI) will suit you for storage only...you won't get lots of speed out of it.
Good luck.