in the end it depends on the individual drives and how they're being used.

Bottom line...very little if any difference especially in the intended use.

The only thing is you might want to use the drive as a primary in another system... so if the difference isn't too great, it might be worth a few bucks long term. Take a look at NEWEGG.COM ... they've got a good selection of the latest drives with full warranties...usually 3 or some with 5 years and good prices.

You can do some further reading at