After battery pack swap demo at Hawthrone, CA design studio on Thursday, I thought back to the referral incentive topic discussed back during shareholder meeting. Perhaps, giving five roundtrip (10) coupons of battery pack swap would be pretty amazing. If it costs $60-80 per swap, the incentive would worth $600-800, which is in par with kevin99 idea of free 1-year servicing. It also help test and push the swapping platform and technology, at least it gives the "naysayer" a chance to give it a try/go for free. What do you guys think?