My OCZ Agility 3 needed a firmware update when I got it ~2.5 years ago, but its read/writes remain dramatically better than real-world throughput tests on most of what is out there today. My friend bought a Kingston at the same time that hard-bricked within 45 days. I'm definitely nearing the end of life for this one, though...
IMO the way to upsell SSD's is to either buy a mini pcie one if there's a slot available, or to yank the optical drive and give them an enclosure, dropping the SSD into a chassis and putting it in the optical space.
That said, make sure that if you're upselling SSD's that you insist that they get a backup service as well, because service life and reliability are unquestionably worse than spinning disks.