Grand Vegas Online Casino also offers weekly bonuses of up to 50% and special promotions are featured in the welcome screens when you login to the casino website. In addition to all this, Grand Vegas offers gamers a unique gift card bonus of 100% up to $600. This bonus can be combined with any other offer including the Welcome Bonus! Pre-paid gift cards are a great option for anyone who is looking for private and secure transactions without having to use credit card online.