Alan, I agreed with your earlier comments about Yahoo!. Pursuant, should you deem this posting inappropriate, I am deeply sorry. However, after a few minutes browsing, this endeavor seems to be copacetic. To wit:
"...eBay will donate matching funds for each winning bid amount. All proceeds will go to the Susan G. Koman Foundation!"
There doesn't appear to be a cap to the level of matching funds, and the items up for auction have been donated by interested parties. So, unless I'm missing something, this seems okay. Or, at least, they're handling it better than Yahoo! did, IMO.
P.S. The above was solely intended as FYI. Whether or not you choose to support this cause; and, if so, how you choose to do so is beyond the scope of this posting. In our case, when mrs. bmv & I have attended UDEs, we've given small donations directly to the SGK Foundation; regardless if we took a test drive or not.