We're currently trusting a drive that might fail in 5 or so years in one specific place. The rest is recoverable, the place of failure might be overwritten anyways, the data might not be needed, smart will warn you that the problem is close in many cases...
With SSD you have a chance of going completely blank. If it happens to be a firmware issue on a RAID mirror, there's also a chance of common fault in both drives.
Even if you have backups in that case, do you really want to deal with such situation?
> smart will warn you that the problem is close in many cases...
According to Google, about two thirds of the time, SMART will warn you.
> there's also a chance of common fault in both drives.
Never, ever trust a RAID array made from identical disks. Whenever possible use different manufacturers, different models and different batches. Whatever caused failure of one drive will eventually cause the failure of its twins. If all twins are in the same array, you won't be happy.
With SSD you have a chance of going completely blank. If it happens to be a firmware issue on a RAID mirror, there's also a chance of common fault in both drives. Even if you have backups in that case, do you really want to deal with such situation?