They did mention that rev two would be around $16,000, assuming they're still in business. That's getting closer to a realistic price relative to competing products. Keep in mind that this is competing with commuter cars, not motorcycles.
You can also deduct the cost of fuel over the vehicle's lifetime. For someone commuting one hour each way to work five days a week, the cost of gas for a big car can exceed $200/month, $2400/year, or $12,000 over the course of five years. That makes the up-front price seem quite a bit more competitive with gas-powered alternatives.