There are a lot of MBT hardtale frames available during the winter months as this seems to be the best time for the Parts peddlers to buy left over stock and break it down. Having a list of what you would be interested in and checking every 3/4 days helps. Very often a sold frame will be replaced by an identical one the next day. A new trend has appeared this year though. Some of the biggest parts folks appear to be in Hong Kong where they have better access to factory overruns at the end of the season. I am still a little nervous about shipping something like a frame that far.
In my case, the next frame is not the one I am riding at the moment.
Trust nothing, that does not appear on your EBAY message page. In fact just routinely forward anything that is in your email pertaining to EBAY but not replicated in your EBAY message folder to their security division. There are a lot of phishing scams out there that look just like EBAP or PAYPAL pages complete with ads and copyright data.