I think these eBay sellers are trying to take advantage of the interest in vintage cleaners that collectors have. Just because a vacuum is old, doesn't mean it's worth much. Especially a dust belching bottom of the line General Electric. The only vintage vacuum that's worth even close to $600 (in my opinion) would be a flawless and complete Whirlpool Imperial Mark 12 with Power Nozzle, or a Compact with ABC Power Nozzle and original electric hose. Perhaps a Lewyt Electronic, complete and in working condition. But a crappy old General Electric, of which millions were made, is not worth a fortune. The pricing on this brings to mind someone listing kirbys for almost a thousand dollars - just to show them off. No one in their right mind would pay a thousand dollars for a polished up old Kirby. At least I hope someone would be smarter than that. But like they say "a fool and his money are soon parted". Thankfully, with this forum, no collector would be foolish enough to fall for those outrageous prices.