I never learn. At our place the limit is £6 and whenever it's launched, a big thing is made of the fact it's very jokey and personal and you are actively encouraged to do a bit of research about the person you pick.
and yet every year some dullard bloke from another dept always buys cheapo garage chocloate that could be for anyone. and is probably a job lot with the chocs he buys his mother and his wife. and his MIL and his sister.
which i found quite funny each year until this year, because I was on the receiving end today. There are about 4 blokes that routinely do it. They should be barred from taking part next year.