I can’t always find them (I’m in western Washington), but I do prefer blood oranges to normal oranges at least as much as I prefer red grapefruit to white. There’s just more interesting flavor going on.
Oh - and a couple stores around here have been carrying the Sanpellegrino blood orange soda recently.
I like blood oranges every now and then. They make a beautiful, and tasty, curd.
(And incidentally, if your plasma resembles a blood orange you’ve either got a hemolytic problem or a really bad phlebotomist. :))
Back when I lived in NYC, I used to buy them, along with squid-ink pasta, at Balducci’s. In Cleveland, I’ve seen them at the West Side Market.
They’re tasty, but not worth the higher price.
They’re not bad and I really like blood orange soda. I first saw them on a visit to Italy a couple of years ago - one girl got a glass of blood orange juice every morning and it seriously looked like she was drinking a big glass of blood - but I’ve found them at our local Super Target a few times since.
Blood orange and fennel salad is a classic dish.
They’re a family favorite for any dish that calls for orange juice; you get a slightly-different dish while following exactly the usual steps. Strawberries in OJ, sponge cake with an orangey twist, stuff like that.
They used to sell the juice in Scotland, but called it Ruby Orange to avoid scaring people.
It went well in a glass bottle with vodka, to swig at goth parties & try to scare people 
That’s been my experience, too; sometimes they’re so tart they’re more like a lemon. I wonder if the ones we get in Western NC are a different variety, or maybe they’re just not ripe when we get them? I love how they look, but I’m not very fond of the flavor.
I love them but I haven’t seen them in stores for a few years. They taste slightly of raspberries to me.