Chris Roberts'blasted through the $50 million crowdfunding mark over the weekend, thanks to the launch of a series of expensive ships.Roberts Space Industries launched what it called "The 2945 RSI Constellation Lineup" last Friday -- a selection of four spaceships that range from $150 in price, to a whopping $350.The $350 ship in particular, named the Constellation Phoenix , is limited to 5,000 sales. 567 have been sold at time of press, meaning RSI has made $198,450 in revenue from this single ship.The sales of these expensive ships have caused funding for the game to rocket. Before the announcement, the game was making around $40,000 a day in crowdfunding. After the announcement, the game made over $1.3 million in a single weekend.More than half a million people have donated to thecrowdfunding initiative to date, and over $51 million has been raised.