I use to have one but deleted it as well. I realized it wasn't adding any value to my life. Friend status updates? I'd rather get them in person, otherwise it probably isn't actually all that important. I like my privacy and dislike the idea of using a platform that is entirely about serving me ads. No thanks, already see enough.
Have I missed out on anything by not being on Facebook? Nope.
Have I missed out on anything by not being on Facebook? Nope.