By Rob Lenihan Kiss front man Gene Simmons is not worried about the dips as he is willing to accept cryptocurrency for his Las Vegas estate. Looking for a place where you can rock and roll all night and party every day? Maybe the Demon can help you out. Gene Simmons, the fire-breathing Kiss front man, also known by his stage persona “The Demon,” said he will accept cryptocurrency for his Las Vegas estate, which is currently on the market for $13.5 million. “The world is changing,” said Simmons, who described himself as an outspoken proponent of cryptocurrency from the beginning. Kiss, which wa…