MSU bowl ticket sales mean nothing for the next year or two.
We have earned enough notoriety/respect this season (even if we don't win the West) to where we would be picked over the schools that would claim "pick us over MSU because we travel well". That respect will last through next season and maybe the one after that, too. Not to mention that we have actually traveled well in the recent past.
So I don't think it matters one bit if State only has 5,000 fans at the SEC Championship Game, especially if we make the playoffs. The SECCG is probably a much bigger corporate ticket than school/fan game anyway.
Similarly, it doesn't matter if State only has 5,000 fans at the playoff games either, other than motivating our team to play a little harder.