This is all speculation to a degree, but I do take note of what's being used. Approximate clock and core specs for the various gpus have come up in the discussion. We know the cpus just by lining them up with Ivy Bridge EP offerings. At this point I'm interested in reading reviews that go into actual use rather than just benchmarks.
I know they typically refresh the Apple Store site on Tuesdays here.
That is going to depend on a few things. Bear in mind that storage is now proprietary, which tends to hurt. It may become available through channels like OWC depending on the installation process involved. It's not likely to be cheap though, and cheap matters when we're discussing used machines. People buy used to save money relative to the configuration. Long term reliability of those drives will matter quite a bit, as some users may push a lot of data through them, depending on how they're used. Refurbished pricing and availability can have an effect on this too. At 2-3 years, it may only be one generation back, which could boost its value somewhat. Since Haswell E drops the quad cores, core counts will shift down a notch in the scale unless Apple applies another price increase to the base configuration. Intel has maintained the $300 and $600 marks for some time, so that will probably continue.
I really have no idea how resale value will look. I'm merely pointing out things that might influence it. Typically the bigger the leap, the higher the devaluation of old technology, especially in the top tier configurations.
It's okay dude I wasn't asking. It was a poorly phrased comment back to the Major. I should have stated that here in the UK the Mac used market is exceedingly strong! The 2 macs in my signature would easily net me 1500 to 1750 via eBay etc so probably 50% residual minimum in 3 yrs. I wasn't asking about nMP residual, the MP used market gives a very good indication of how that will probably pan out.