Another huge advantage to living on the Wyoming side is your kids will travel for sports and activities to other Wyoming towns and get to know the entire state. Boys and girls across the state enjoy fly fishing, archery, shooting, camping, skiing, mountain biking, etc. Kids in Colorado only interact with other Colorado schools.
My ex wife reminded me how much she enjoyed the Cheyenne ice rink as a kid and even competed as a teenager. Skating isn’t my thing, but it’s one more thing to do regardless of the weather outside.
In the summer there’s great fly fishing at the little high lakes in the Snowy’s - close enough to make a day trip of it. Even Curt Goudy (sp?) state park has a lot of stockers at the inlet.
There’s a lot of old west history just north of Cheyenne - many international tourists fly to Denver specifically to head up into Wyoming and hit the historical spots on up through the black hills.
If your kids are college bound, I predict you’ll find a lot more opportunities for high school kids to earn college credit and get into summer programs at the University of Wyoming. The difference between UW and CSU couldn’t be more different. CSU wants kids to get in and get out quick. There’s a lot more flexibility to the type of programs in Wyoming.