Link
I've been looking for this size TV from LG or Samsung for a while now and this seems like by far the best price, is buying a refurb a big mistake?
Depends who it was refurbished by.
If it's refurbished by the manufacturer, it's worth it. Refurb by 3rd-party is usually not.
Example:
By a huge company like Apple, I prefer buying an Apple Certified refurbished product over new. Since that means a "Specialist" went over the entire product and made sure it's in perfect condition before they resold it. Brand new just came off an assembly line with millions of other units.
Worst case, it breaks in a few months and you get refunded from Amex.