Some pro's and Con's to 2 lands close together:
Con: shared membership pool (although Sacramento County has a large population and several groups of geeks that feeds well in to Amtgard)
Pro: some people can only play one day per weekend, and if you have 2 parks playing on the 2 different days, advantage Amtgard
Con: Rivalries can form (although this could lead to some epic invasion style play.
Pro: If you don't fit in with one park, you can play at the other.
Con: Confusion as to which park you are at. (not a big con, but I'm struggling to come up with cons at this point)
Pro: Easier paper work for the 2 PMs not having to 1/2 or 1/4 credit people attending both.
Con: shared resources stretches thin
Pro: attend both and get two full credits
Con: The misdeeds of one park can cast a shadow on the other.
Pro: twice the office positions available for people to have a turn at leadership
Con: thinking.....um....
Pro: shared events like coronations and camp outs
Con: um....give me a minute
This is similar to the relationship between WH and AS. While they are farther apart, several people play at the farther one as they can not attend the closer one due to scheduling issues. Several members play at both lands often boosting the numbers of both.
If there are any other CONs out there, it would be good to voice it.
But the issue is not HAVING a second park in Sacramento, the issue is if this second park can also be part of Westmarch.By allowing this second park into Westmarch, Westmarch gains additional resources of the players and their numbers. This Park has large numbers, creative artisans, service oriented members, and what looks like a park that is encouraging their presence. They do not travel much yet, but most are just now getting to the 6 month mark and have shown interest in next FoM, Darkshore, Flurbtastic, and Clan. This would be a boon to any kingdom. Better our's than another.
Why would we not welcome them in with open arms? This group seems to be truly doing all they can to be the type of Amtgard land Westmarch wants in its kingdom.
As I only returned to TR and WM last month I have no vote yet, but I encourage those that do to vote YES to accepting Mistyvale in to Westmarch.
TL:DR
Mistyvale is not going away, so better to bring them in to WM then not.