In my experience, the price of the GT tends to hover within 10% or so of the value of the loot you get, at least if you were making the relic. I don't know if that's coincidence, or if Jeff looks at what people are paying and tries to throw stuff in, or what. The Dalek year I was lucky (or skilled!) enough to get the coin so I came out ahead.
Last year it was much easier to get the bonus RoH that you can't even make yet. And not nearly as many relics as this year, so don't expect one of each this time...
Don't forget, it's a $48 ticket, if nothing else, so add that in. If you don't have a HoP CoGF, it's like two or three, chip-wise. And you get to run with some great players.
So if you're worried mostly about profit/loss, you might come out ahead a couple hundred bucks by selling/trading it, but Shelly won't let me get rid of mine. It came to me "free" so I was meant to draw it and use it, says she, and she doesn't have to try very hard to get me to agree
My concern would be the plane schedule. If your luggage is lost or your flight is delayed I'm sure Jeff would still give you the swag, and maybe a bump, because he's cool like that. And you could probably jump into the bonus room, whatever that is. But it would still be sad.
"Ceci n'est pas une pipe" - Magritte