I've just consulted the oracle spreadsheet (how sad am I?
). Last year I spent £460 on presents for 22 people, many of them bought on offer, 3 for 2, etc, so the value of said gifts was £690. I'm quite proud of my bargain hunting! DH and I, the DC and DILs do a Secret Santa now and just buy/get one present each for £30, so that's cut down the expense considerably, as well as making present buying much easier. Though I do still make up a stocking for any adults here on Christmas morning, and they can be surprisingly costly!
From what I've got so far, I think I'm going to be spending around £600 this year - we've an extra DGS for starters! 