Post # 1
I have a group of friends from high school. We all get together once a year at the holidays, but I’m not close to everyone anymore (i.e There are some people who I only see at this one holiday party each year). Should I invite just the people I talk to regularly or just invite the whole group to the wedding?
Post # 3
It depends on a lot of things but mainly your budget and your space. I don’t think any of us can give you a blanket "yes" or "no" answer. If you have room and the money and you want them there, go for it. If not to any of those criteria, then don’t!
Post # 4
If space and/or budget are limited, I think it’s fine to just invite those people you feel close too, and not necessarily everyone in the group. You can also have an A and B list, and can invite people on the B list after you get a certain amount of "no" RSVPs from the A list.