If you and a friend want to purchase more than one kit at at time, you can save substantially on crating and shipping cost by crating them together. Alternatively, I can check to see if there are other prospective customers in your area who would be willing to split shipping cost with you and receive their kit at the same time. Sometimes the few hundred bucks this saves is enough of an incentive to warrant an immediate purchase!
Why is it cheaper? If you've read Shipping, above, you know about dimensional weight. I can nest two or more kits together in a volume not much greater than one buy itself, effectively reducing the cost of crating AND shipping per kit almost in half.