I agree with you. I like that they mentioned people came by to their larger event by way of the paper invitation. There's something about a paper invitation that signals thoughtfulness and care. You have to print out these things and actually go walk door to door to drop them off. It's not a huge amount of work, but way more than just tapping a button.

I actually have gotten paper invitations from a neighbor on my street for a holiday party at their house and ended up going without having met them before just because it felt good to see it on my door step. Somebody actually took the time (actually, it was their kids) to drop it off.