here's a tought that i haven't seen mentioned yet...
i remember reading in an ign mailbag that someone found a website for a brand new developer that boasted having employees that had worked on both ed and mgs:tt. the mailbag can be found
here. (at the time of this post the page won't load, but here's hoping it will come back.) i don't remember the name of the developer or the website. sorry. regardless, matt @ ign contacted denis regarding this news, and denis was quoted as saying something like "we have lots of employees leave all the time, but i have no idea who's a part of this new developer".
is it possible that all of sk's talent flew the coop and nintendo ended the relationship while the gettin' was good? it could be much like how nintendo sold off rare once the talent left, but before they lost value--nintendo got rid of all its stock in sk before the price dropped.
just a thought. no clue if there's any connection between the two pieces of information. also, i'm not saying dropping sk would be a good idea just because many core people left the company. my point is, don't be so quick to rag on nintendo before all the cards are laid on the table. i remember many people saying a lot of bad things about nintendo when rare was sold, but (at present time) it appears to have been a wise decision.