About six months ago I bought one from Asda/Walmart in Swindon on a whim, as it was only ~ £12. I use it at least three times a week and it does great rice.
Last night was plain basmati rice to go with a chilli con carne. If I am making rice for a curry I add in cloves, green cardamom, cinnamon sticks and fennel seed.
There is usually some rice 'baked' to the base after cooking, I don't know if the more expensive ones do this ?