3) Do not buy a next-gen console yet. Don't buy the games until I have one sometime in 2014... if the games are even still available then.
*looks over at copy of 2008's Sonic Unleased that he picked up last week*
Games don't cease to exist after 12 months you know. You can't miss out on games. In fact, the longer you wait the cheaper they get, so I'm really not sure what you're worried about.
Yeah, that's a weird concern. Even if your local stores stop carrying a game after a whole, they can still be purchased online (or hell, even downloaded right onto your system).