this is a pretty good deal.
also, look
here
"Blem" just means it already has a scratch or has been returned for some reason... in other words, it's a lot cheaper and you don't have to get pissed when you put your first scratch on it.
There's nothing wrong with a Silvertone, Aria, or any other "cheap" guitars, but I wouldn't buy one online without picking it up and seeing how it feels first. I know more than a few people who have old Washburn Lyons or Peavey Predators tucked away in a closet or somewhere because that's what they learned on... mine was a Lotus strat knock-off.