you're going to be sick to your stomach next...if you move outside your current designated sports market, which apparently you will, then you will be able to receive essentially none of that market's 'big league' sporting events as carried on regional sports networks or local broadcasts...as you have already gleaned, subscribing to an 'out-of-market' satellite sports package gets you over a couple dozen different rsn's from around the country, with most non-game content viewable, but the actual games blacked out...
sounds counterintuitive, right? what's satellite supposed to be for if not to get all kinds of everything from all kinds of away....? well, satellite once did that, back before the clamps were put on by the cable industry with the encryption of signals...see, cable was essentially 'there first', and set an initial model of regional-only distribution...all of their agreements with programmers called for distribution only within limited market demarcations...a cable company has limited channel space, and certainly couldn't devote any to other-market programming which would have very limited 'hometown' interest...also, cable operators simply don't try to be competing with one another....
thus with the advent of satellite and the threat to their world order, they (the co-owned cable ops and programmers) simply imposed the same territorial divisions upon it....
the sports leagues don't mind so much, either, because this has afforded them an opportunity to market specialized, pricey events packages to blacked-out sports fans, such as nfl sunday ticket, mlb extra innings, nba league pass, and nhl center ice...open wallet wide, please....
one resistance tactic is to sign up for satellite at a location within your desired sports territory, such as at your current home, and then take your dish with you to your new home outside the territory without informing the satellite provider of your move...unlike with cable, satellite providers cannot verify receiving locations...
the overriding technical issue with 'moving' is that some programming, particularly satellite local channels, may be delivered via 'spot beams' which are only receivable over a given region....if not moving too far, maybe only a state away, the signal may still be receivable, but otherwise, no satellite locals if they were on a spot beam...but the regional sports networks are nationally receivable, so you should be able to keep getting your home teams anywhere in the country...
or else set up a system with an area buddy and use a slingbox