Sony is currently running some great specials on Alpha Series camera bodies and lenses, like the A7R II for $2,899.00, at $300.00 off of the list price. You can buy the A7R, A7, or a7s from Amazon at the discounted price and with Prime for free shipping.
Sony also has a Trade-in Program—bring your working DSLR, mirrorless camera or lens into participating dealers and save up to $480 off the purchase of qualifying Sony a7 series cameras and full-frame E-mount lenses.
For a full list of sale items and more details about the trade-in program, visit Winter 2017 at Alpha Universe. Amazon does not participate in the trade-in program, but a local retailer near you does.