Many thanks to SWLing Post contribuor, Charlie (WA2ONH), who notes:
A good price for the XHDATA D-808 on eBay right now. No connection with the vendor. Buy at your own risk.
Thank you for the tip, Charlie! Looks like the seller has a 99.6% positive rating–impressive for the volume they handle. I suppose the only thing worth noting is shipping time–if you opt for free shipping, it could take a few weeks to arrive.
The price–$106.00 AU or $77.51 US–is a great price for the XHDATA D-808.