But you just KNOW that one of your numbers will win the jackpot the month after you sell them ;-)
(I've got £5 worth, bought for me as a present when I was born. I've never won a penny.)
I don't think Premium Bonds are facepunch-worthy. They're not a priority savings vehicle for most of us, but if you've already maxed your pensions, ISAs, and tax-free-interest cash deposits, they're a safe way of generating, with average luck, a tiny tax-free return.