I don't see value IMHO.
You have to further dissect the market you're pitching to. Casino endusers are flooded with offers for domain names at much better quality/value and will only respond unless you have a good name under a top extension or a
very strong keyword under a weak extension like 'Cards.biz' 'Poker.biz', 'Slots.biz'.
Shuffle.biz is vague, maybe you can get $xx if you come across a guy that collects domains for his company and likes it, but it won't be a business investment to anyone worth $xxx and up, they can get better in that price range, it's out there....unless you're one hell of a salesperson and you catch them in a generous mood.
Oh... and a lot of those searches are coming from a dance called the Shuffle, so if you marketed it to a website that teaches how to do the dance or something, even that, fat chance lol. Sorry
Develop it and post videos of people doing the Shuffle.
Then sell the website for the traffic.