Are you planning on purchasing the Surface Pro 3 as soon as you can or will you wait for a sales event or bundle to come out?
You assume there will be a sale or bundle. Just buy it.
The greater reason to wait is to see how the build quality turns out. The Surface RT had top quality manufacturing. The Surface 2 had a bit of a rocky start for the few 2 months or so. Those issues have long since been ironed out and the manufacturing quality is top notch.There has to be. It happened with both Surface Pro and RT models, so it would only make sense for there to be a sale or accessory bundle saving with the Pro 3 too.