Hi there Highground,
Welcome to ECN!.
You can sure pay a dollar or two for a Megger these days, the one I bought a few years back, (an AVO/Megger) cost me just shy of NZ$800.
I'd personally be a tad wary of buying test equipment off of eBay, you don't know how well it's been looked after in the past.
At least if it's new, you'll get some sort of a warranty with it.