There's six days left on it. It's up to $20. I would just go to auto zone and get a 400watt (800max) for $45. But, I think they jacked their prices up. Though I like ebay it isn't ALWAYS the best deal.
At big lots, they have a pretty good 300w inverter for $30.. It has a fan, autolow power shut off, and two outlets.. comes with cig lighter and alligator clips, your choice.. I use it and it works well..