Optix is indeed correct, the original SandForce drives are still out there and are much more affordable now, so that's always an alternative option if the prices are too high. I believe all of the SSD manufacturers already transitionedtheri first-generation SandForce drives to 20-something nm NAND a few months ago for cost reasons. Some brands will distinguish between which is used in which models, but others do not.
Marfig, you bring up an interesting point Rob and I were discussing yesterday. Traditionally I have always kept every HDD I ever bought until it wore out or the machine it was in was sold. I never upgraded a hard drive unless I needed more capacity, but even then I still used the old ones. But for SSDs, I am honestly not sure how many people will do the same.
Every year SSDs have leapt ahead, more often than not outright doubling performance every year. Prices are continuing to fall on them, the first Intel drives used to run well north of $7 per GB three years ago. Today, a good special can make it $1 per GB. Three years from now I'm not even sure I can imagine what SSDs will be capable of, but I am certain that prices will be way below $1 per GB, very likely half to a fourth of that.
It seems like many SSDs buyers I'm aware of already have replaced older model SSDs, especially the ones with problematic controllers. And all of them that haven't bought a second SSD yet already want to do so. Not everyone has the discretionary income, that I well understand, but it seems to me that most SF-2281 buyers will probably be upgrading SSDs again around the same time the warranty expires.... so the question of longevity seriously does come down to whether or not the SSD would ever get replaced.
Although I will say... Marfig, I'm shocked at you! No backup system, no failsafes??
It only takes $50 and some free cloning software to have a solid backup system! I fully expect the average SSD to easily last 5 full, busy years... but they are in some ways extremely fragile. A certain power supply I just mentioned in another post managed to kill one because of stray voltages... one moment everything was peachy, one computer restart later the drive was utterly dead. So I'd all the more strongly advise everyone to back up their SSDs even more than a HDD for that reason alone. When an SSD unexpectedly dies, it's usually permanent and without any warning.