Rebates are usually considered one of those plagues of the PC hardware world. $10 here or $50 there, which can be nice if you remember to do it but often people forget. Sony, though, is offering a rebate that you probably won't. A trade-in more appropriately, and a fairly large one at that. For those buying a BX model Sony laptop you can get a $300 kickback for a working laptop, or a very impressive $500 for a Dell. That's actually a pretty nice deal. The actual terms aren't clear, but I suspect those trade-ins can be altered based on the condition of the laptop, but it's a clever scheme nevertheless. Give back that aging Dell for a shiny new laptop with a discount to boot. It will be interesting to see what response, if any, Dell has to Sony's new marketing tool.