I’ll be contrarian, since you asked for opinions.
The vow renewal is a whole separate thing, but speaking solely for us, we have never found the unlimited package to be a good value for a normal cruise.
We discovered that we have a lot more emotional attachment to the candid, unstaged photos we take on our phones than anything ever taken by an on-ship photographer.
We might pick up one or two photos per cruise, but we have never loved (and therefore never bought) anywhere near enough photos where we would have saved money buying the unlimited package.