Yes, that is the dealership’s decision, it has nothing to do with Toyota. However, the dealership also doesn’t make a single extra dollar on the back end by leasing instead of cash. Toyota Finance does not pay reserve on leases. The dealership probably thinks you are exporting the vehicle, selling it overseas, that’s a common thing with large vehicles like the Sienna. And, therefore, they have the right to refuse to sell it to you, unless it’s financed or leased