It's one of those names that looks good, but thining of how to use it gets a little complicated.
First thing I thought of was a casino, for dealing cards, earning "gold" -- but the players don't deal, so this would be awkward.
I did a search on Google for "deal gold" and it shows up, but only 800 times or so. And when it does it almost always is with some punctuation separating the two words, or in phrases so that deal was connected with the words in front of it and gold with the words behind it.
The only exception I saw was some guy doing Google optimization on a page that forwards directly to someone else's credit card application. The title of the page was "Best Deal Gold" -- this leads me to believe that there's some value in the placement of the words that way for searches and possibly also for page ranking, at least assuming the same guy doesn't have hundreds of different sites with variant keywords pointed everywhere for the traffic so Google can suck it up.
It's short, has two good keywords, sounds OK on first blush, so it's not a complete dud... I think someone might want it.