The 3 were new units. Desktop is a Gateway i5, the Samsung piece of junk laptop is a 17-inch i5, and its replacement Dell is a 17-inch i7.
One morning, the Samsung laptop would just not turn on. I tried all the tricks — removing battery, removing memory, even took out the hard drive and managed to copy files I needed. I read online that others had similar problems. I took it to a local repair shop, since it was out of warranty. We concluded that the motherboard was the culprit, but the repair shop could not find a replacement — not even from Samsung.
They do make great monitors, though... I have several 27” widescreens, but have never tried their machines. My best luck’s been w/ HP, so far.