I dont' know about you, but most of what I buy on ebay (by dollar amount, for sure) are items to support ebay sales - including repair parts, business supplies like packages and paper and tape, and so on. It would save me a bunch of manual entry to have ebay purchase show up in expenses. If they are not business expenses then, like Go-Daddy, there can be a category called "personal" that doesn't get counted in the expense rollup.
I'll start a poll on this.