I'm starting to make a list of things we'll need for our October 2012 wedding reception, and "guestbook" seems to be something on everyone's list. Is having a guestbook really necessary or meaningful, though? We're expecting only about 80 people, and I can't imagine forgetting who attended my own wedding, especially when there's so much other proof of that (like RSVPs and photographs). It's not a big deal to just buy one, I agree, but anything I can take off the list is worth it (I'm having My Little Skinny Stripped-Down Casual Wedding).
Did anyone not have a guestbook, and found that it didn't matter? Or did anyone not have one and regret it?