You know, from a players perspective who feels just this way, one of the major draws of this tournament is that you can stack your money that you win. If I couldn't win more than one Regionals, or compete in them, it would really turn me away from the game. Especially with Nationals? Ok, you won a trip at Regionals, you can't compete at Nationals because you have a trip? Even though its prizes are higher? That seems legitimate? What about the trip to Origins? If you won a State would you not be allowed to compete in a Regionals since its prizes overlap? If you say they can, because there are additional prizes, what about the fact that the trip prizes overlap, but there are also additional prizes in scholarships. I think that the current system is fine.
The difference in competition and number of wins you need also doesn't reflect evenly based upon skill level of area. For instance, you could have a state with minimal good players, vs a tournament where myself, moss, seena, drew, tom d, jason k, alex b, aj, foisy, psycodad, wetz, and more show up at ( This has happened ) How is winning a trip there requiring the same effort as winning a trip at a small regionals with weak competition. Its the same issue, different reason,a nd it can't be dealt with. I think the issue is null and void, and to tweak it is only for the worst.