I could well still be wrong, but I'm not convinced.
I know it's a minor thing, but nearly every scam email I get starts with 'Hello' or 'Greetings'.
I've looked back and every one of my eBay email start with 'Hi' then my first name or user name only. Never my user name and email address.
You can right-click and take a look at the properties of the email which should give you some clue as to whether this is genuine or not.
Or hover your mouse over any links on the page and see if they are correct as well.
Apologies if I'm putting you off course.
Better safe than sorry, though.