In 2017 we did an evening dining package so that we could get the last show. And despite booking it in our reservation, we had to make sure we pointed out to our waitress that we were doing the package. Also note, if you choose a lunch package you are likely to get seats at one of the two earlier shows.
In my mind, it was well worth it. We were one of those people who waited til after the previous show was done to get in line, so maybe more like 45 minutes before our show, and my husband even looked at the line we got in and said, "no way are we getting seats, I'm taking the kids on Test Track if we don't get a seat." I packed little treat bags for all of the kids to open and enjoy while we waited with glow sticks, stickers, ring pops, etc. We ended up in the second row right outside of the overhang, behind the handicapped seating. We had pretty good seats and felt immersed in the show (with the choir, orchestra and trumpeters, it is more impressive I think to be a bit closer as we were). It was a big group of us, my in laws, DH, DS5, DS7 and DS11 as well as a couple we are friends with and their two sons 7 and 9.
When the trip was done, I asked my DS11 what his favorite things we did were, as we knew this was probably our only time going at Christmas, we did a lot of "special" things. His answers were the HEA dessert party and the "choir" concert (
MVMCP didn't even rank for any of my kids, which surprised me). After the fact, DH enjoyed it and was glad we did it. My friends and their sons were glad we did it as were my two youngest sons, who I did have to cuddle with a bit as it is a 40 minute show and they got a bit antsy. Just know, it does involve a bit of effort and waiting, even with the dinner package.
It depends on your family though. My children are used to going to musical performances of orchestras that are around the same length. I grew up singing in choirs, and our family members are all in really into music. I felt the performance quality was really great (we live in Cleveland and have a world-renowned orchestra so we have high standards). I was nervous about doing it because it was a significant time investment and my youngest was at a squirmy age, but it was honestly the one thing I really cared about seeing, and after the fact my kids and family were glad we did it.