I just found out that our return flight on SW (Oct. 31st) is completely sold out (verified on the phone with agent). We did
not purchase the Early-Bird Check-In when we booked the tickets almost 5 months ago (I feel sick

)
In your opinion, is it worth it to purchase the EBCI for our family of 4 (ages 13 and up) this late in the game? If so, any guesses on what boarding we are likely to get?
Thanks for you help!
ETA: I've been all over the internet to see if EBCI is worth it and have read several stories where people that didn't use it but that did check-in at exactly the 24 hour mark, got a better boarding position than the EBCI people. Does this happen frequently? I called SW twice and asked what the benefit of EBCI would be and was told that I
may get a little better position but the
biggest benefit is that
I don't have to remember to check-in since the system will do it for me....Is that really the biggest benefit? I am so confused now

$50 bucks is $50 bucks...